Home / 7,132.52-9,842.61-3,988.51

Finding the Fourth Proportional to 7,132.52, 9,842.61 and 3,988.51

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Solution

The fourth proportional to 7,132.52, 9,842.61 and 3,988.51 is: 5,503.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.52 : 9,842.61 = 3,988.51 : x
  2. Step 2: Convert to fraction form
    7,132.52/9,842.61 = 3,988.51/x
  3. Step 3: Cross multiply
    7,132.52x = 9,842.61 × 3,988.51
  4. Step 4: Simplify right side
    7,132.52x = 39,257,338.76
  5. Step 5: Solve for x
    x = 39,257,338.76/7,132.52
  6. Step 6: Final answer
    x = 5,503.99

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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.