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Finding the Fourth Proportional to 7,104.65, 10,659.71 and 2,721.08

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Solution

The fourth proportional to 7,104.65, 10,659.71 and 2,721.08 is: 4,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.65 : 10,659.71 = 2,721.08 : x
  2. Step 2: Convert to fraction form
    7,104.65/10,659.71 = 2,721.08/x
  3. Step 3: Cross multiply
    7,104.65x = 10,659.71 × 2,721.08
  4. Step 4: Simplify right side
    7,104.65x = 29,005,881.87
  5. Step 5: Solve for x
    x = 29,005,881.87/7,104.65
  6. Step 6: Final answer
    x = 4,082.66

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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.