Home / 3,715.97-5,127.19-2,521.12

Finding the Fourth Proportional to 3,715.97, 5,127.19 and 2,521.12

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Solution

The fourth proportional to 3,715.97, 5,127.19 and 2,521.12 is: 3,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.97 : 5,127.19 = 2,521.12 : x
  2. Step 2: Convert to fraction form
    3,715.97/5,127.19 = 2,521.12/x
  3. Step 3: Cross multiply
    3,715.97x = 5,127.19 × 2,521.12
  4. Step 4: Simplify right side
    3,715.97x = 12,926,235.62
  5. Step 5: Solve for x
    x = 12,926,235.62/3,715.97
  6. Step 6: Final answer
    x = 3,478.57

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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.