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Finding the Fourth Proportional to 2,715.32, 3,747.13 and 1,536.37

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Solution

The fourth proportional to 2,715.32, 3,747.13 and 1,536.37 is: 2,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.32 : 3,747.13 = 1,536.37 : x
  2. Step 2: Convert to fraction form
    2,715.32/3,747.13 = 1,536.37/x
  3. Step 3: Cross multiply
    2,715.32x = 3,747.13 × 1,536.37
  4. Step 4: Simplify right side
    2,715.32x = 5,756,964.91
  5. Step 5: Solve for x
    x = 5,756,964.91/2,715.32
  6. Step 6: Final answer
    x = 2,120.18

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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.