Home / 5,136.38-7,088.10-3,147.02

Finding the Fourth Proportional to 5,136.38, 7,088.10 and 3,147.02

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Solution

The fourth proportional to 5,136.38, 7,088.10 and 3,147.02 is: 4,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.38 : 7,088.10 = 3,147.02 : x
  2. Step 2: Convert to fraction form
    5,136.38/7,088.10 = 3,147.02/x
  3. Step 3: Cross multiply
    5,136.38x = 7,088.10 × 3,147.02
  4. Step 4: Simplify right side
    5,136.38x = 22,306,392.46
  5. Step 5: Solve for x
    x = 22,306,392.46/5,136.38
  6. Step 6: Final answer
    x = 4,342.82

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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.