Home / 6,293.42-8,683.52-3,640.76

Finding the Fourth Proportional to 6,293.42, 8,683.52 and 3,640.76

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Solution

The fourth proportional to 6,293.42, 8,683.52 and 3,640.76 is: 5,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,293.42 : 8,683.52 = 3,640.76 : x
  2. Step 2: Convert to fraction form
    6,293.42/8,683.52 = 3,640.76/x
  3. Step 3: Cross multiply
    6,293.42x = 8,683.52 × 3,640.76
  4. Step 4: Simplify right side
    6,293.42x = 31,614,612.28
  5. Step 5: Solve for x
    x = 31,614,612.28/6,293.42
  6. Step 6: Final answer
    x = 5,023.44

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Find fourth proportional to 3,146.71, 4,341.76 and 1,820.38
Half scale
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Double scale
Find fourth proportional to 6,294.42, 8,684.90 and 3,641.76
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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.