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Finding the Fourth Proportional to 5,612.64, 7,745.87 and 3,254.76

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Solution

The fourth proportional to 5,612.64, 7,745.87 and 3,254.76 is: 4,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.64 : 7,745.87 = 3,254.76 : x
  2. Step 2: Convert to fraction form
    5,612.64/7,745.87 = 3,254.76/x
  3. Step 3: Cross multiply
    5,612.64x = 7,745.87 × 3,254.76
  4. Step 4: Simplify right side
    5,612.64x = 25,210,931.57
  5. Step 5: Solve for x
    x = 25,210,931.57/5,612.64
  6. Step 6: Final answer
    x = 4,491.81

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Double scale
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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.