Home / 4,140.91-5,715.53-2,882.17

Finding the Fourth Proportional to 4,140.91, 5,715.53 and 2,882.17

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Solution

The fourth proportional to 4,140.91, 5,715.53 and 2,882.17 is: 3,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.91 : 5,715.53 = 2,882.17 : x
  2. Step 2: Convert to fraction form
    4,140.91/5,715.53 = 2,882.17/x
  3. Step 3: Cross multiply
    4,140.91x = 5,715.53 × 2,882.17
  4. Step 4: Simplify right side
    4,140.91x = 16,473,129.10
  5. Step 5: Solve for x
    x = 16,473,129.10/4,140.91
  6. Step 6: Final answer
    x = 3,978.14

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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.