Home / 7,402.80-11,097.12-2,721.72

Finding the Fourth Proportional to 7,402.80, 11,097.12 and 2,721.72

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Solution

The fourth proportional to 7,402.80, 11,097.12 and 2,721.72 is: 4,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.80 : 11,097.12 = 2,721.72 : x
  2. Step 2: Convert to fraction form
    7,402.80/11,097.12 = 2,721.72/x
  3. Step 3: Cross multiply
    7,402.80x = 11,097.12 × 2,721.72
  4. Step 4: Simplify right side
    7,402.80x = 30,203,253.45
  5. Step 5: Solve for x
    x = 30,203,253.45/7,402.80
  6. Step 6: Final answer
    x = 4,079.98

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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.