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Finding the Fourth Proportional to 3,708, 5,117.04 and 2,136.06

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Solution

The fourth proportional to 3,708, 5,117.04 and 2,136.06 is: 2,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708 : 5,117.04 = 2,136.06 : x
  2. Step 2: Convert to fraction form
    3,708/5,117.04 = 2,136.06/x
  3. Step 3: Cross multiply
    3,708x = 5,117.04 × 2,136.06
  4. Step 4: Simplify right side
    3,708x = 10,930,304.46
  5. Step 5: Solve for x
    x = 10,930,304.46/3,708
  6. Step 6: Final answer
    x = 2,947.76

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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.