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Finding the Fourth Proportional to 5,612.76, 7,745.19 and 3,254.46

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Solution

The fourth proportional to 5,612.76, 7,745.19 and 3,254.46 is: 4,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.76 : 7,745.19 = 3,254.46 : x
  2. Step 2: Convert to fraction form
    5,612.76/7,745.19 = 3,254.46/x
  3. Step 3: Cross multiply
    5,612.76x = 7,745.19 × 3,254.46
  4. Step 4: Simplify right side
    5,612.76x = 25,206,411.05
  5. Step 5: Solve for x
    x = 25,206,411.05/5,612.76
  6. Step 6: Final answer
    x = 4,490.91

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Find fourth proportional to 2,806.38, 3,872.60 and 1,627.23
Half scale
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Double scale
Find fourth proportional to 5,613.76, 7,746.57 and 3,255.46
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.