Home / 6,139.26-8,472.20-3,487.55

Finding the Fourth Proportional to 6,139.26, 8,472.20 and 3,487.55

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Solution

The fourth proportional to 6,139.26, 8,472.20 and 3,487.55 is: 4,812.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.26 : 8,472.20 = 3,487.55 : x
  2. Step 2: Convert to fraction form
    6,139.26/8,472.20 = 3,487.55/x
  3. Step 3: Cross multiply
    6,139.26x = 8,472.20 × 3,487.55
  4. Step 4: Simplify right side
    6,139.26x = 29,547,161.31
  5. Step 5: Solve for x
    x = 29,547,161.31/6,139.26
  6. Step 6: Final answer
    x = 4,812.82

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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.