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Finding the Fourth Proportional to 7,100.08, 10,650.84 and 2,721.22

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Solution

The fourth proportional to 7,100.08, 10,650.84 and 2,721.22 is: 4,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.08 : 10,650.84 = 2,721.22 : x
  2. Step 2: Convert to fraction form
    7,100.08/10,650.84 = 2,721.22/x
  3. Step 3: Cross multiply
    7,100.08x = 10,650.84 × 2,721.22
  4. Step 4: Simplify right side
    7,100.08x = 28,983,278.82
  5. Step 5: Solve for x
    x = 28,983,278.82/7,100.08
  6. Step 6: Final answer
    x = 4,082.11

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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.