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Finding the Fourth Proportional to 7,132.54, 9,842.84 and 3,988.73

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Solution

The fourth proportional to 7,132.54, 9,842.84 and 3,988.73 is: 5,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.54 : 9,842.84 = 3,988.73 : x
  2. Step 2: Convert to fraction form
    7,132.54/9,842.84 = 3,988.73/x
  3. Step 3: Cross multiply
    7,132.54x = 9,842.84 × 3,988.73
  4. Step 4: Simplify right side
    7,132.54x = 39,260,448.19
  5. Step 5: Solve for x
    x = 39,260,448.19/7,132.54
  6. Step 6: Final answer
    x = 5,504.41

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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.