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Finding the Fourth Proportional to 7,275.52, 10,913.12 and 2,081.44

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Solution

The fourth proportional to 7,275.52, 10,913.12 and 2,081.44 is: 3,122.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.52 : 10,913.12 = 2,081.44 : x
  2. Step 2: Convert to fraction form
    7,275.52/10,913.12 = 2,081.44/x
  3. Step 3: Cross multiply
    7,275.52x = 10,913.12 × 2,081.44
  4. Step 4: Simplify right side
    7,275.52x = 22,715,004.49
  5. Step 5: Solve for x
    x = 22,715,004.49/7,275.52
  6. Step 6: Final answer
    x = 3,122.11

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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.