Home / 5,239.38-7,230.53-2,881.70

Finding the Fourth Proportional to 5,239.38, 7,230.53 and 2,881.70

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Solution

The fourth proportional to 5,239.38, 7,230.53 and 2,881.70 is: 3,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.38 : 7,230.53 = 2,881.70 : x
  2. Step 2: Convert to fraction form
    5,239.38/7,230.53 = 2,881.70/x
  3. Step 3: Cross multiply
    5,239.38x = 7,230.53 × 2,881.70
  4. Step 4: Simplify right side
    5,239.38x = 20,836,218.30
  5. Step 5: Solve for x
    x = 20,836,218.30/5,239.38
  6. Step 6: Final answer
    x = 3,976.85

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Half scale
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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.