Home / 7,132.23-9,842.48-3,902.09

Finding the Fourth Proportional to 7,132.23, 9,842.48 and 3,902.09

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Solution

The fourth proportional to 7,132.23, 9,842.48 and 3,902.09 is: 5,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.23 : 9,842.48 = 3,902.09 : x
  2. Step 2: Convert to fraction form
    7,132.23/9,842.48 = 3,902.09/x
  3. Step 3: Cross multiply
    7,132.23x = 9,842.48 × 3,902.09
  4. Step 4: Simplify right side
    7,132.23x = 38,406,221.78
  5. Step 5: Solve for x
    x = 38,406,221.78/7,132.23
  6. Step 6: Final answer
    x = 5,384.88

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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.