Home / 5,240.53-7,231.98-2,882.71

Finding the Fourth Proportional to 5,240.53, 7,231.98 and 2,882.71

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Solution

The fourth proportional to 5,240.53, 7,231.98 and 2,882.71 is: 3,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.53 : 7,231.98 = 2,882.71 : x
  2. Step 2: Convert to fraction form
    5,240.53/7,231.98 = 2,882.71/x
  3. Step 3: Cross multiply
    5,240.53x = 7,231.98 × 2,882.71
  4. Step 4: Simplify right side
    5,240.53x = 20,847,701.07
  5. Step 5: Solve for x
    x = 20,847,701.07/5,240.53
  6. Step 6: Final answer
    x = 3,978.17

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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.