Home / 5,149.38-7,721.55-3,590.13

Finding the Fourth Proportional to 5,149.38, 7,721.55 and 3,590.13

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Solution

The fourth proportional to 5,149.38, 7,721.55 and 3,590.13 is: 5,383.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.38 : 7,721.55 = 3,590.13 : x
  2. Step 2: Convert to fraction form
    5,149.38/7,721.55 = 3,590.13/x
  3. Step 3: Cross multiply
    5,149.38x = 7,721.55 × 3,590.13
  4. Step 4: Simplify right side
    5,149.38x = 27,721,368.30
  5. Step 5: Solve for x
    x = 27,721,368.30/5,149.38
  6. Step 6: Final answer
    x = 5,383.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.