Home / 5,239.71-7,229.93-3,143.84

Finding the Fourth Proportional to 5,239.71, 7,229.93 and 3,143.84

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Solution

The fourth proportional to 5,239.71, 7,229.93 and 3,143.84 is: 4,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.71 : 7,229.93 = 3,143.84 : x
  2. Step 2: Convert to fraction form
    5,239.71/7,229.93 = 3,143.84/x
  3. Step 3: Cross multiply
    5,239.71x = 7,229.93 × 3,143.84
  4. Step 4: Simplify right side
    5,239.71x = 22,729,691.26
  5. Step 5: Solve for x
    x = 22,729,691.26/5,239.71
  6. Step 6: Final answer
    x = 4,337.97

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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.