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Finding the Fourth Proportional to 2,708.55, 3,737.70 and 1,660.64

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Solution

The fourth proportional to 2,708.55, 3,737.70 and 1,660.64 is: 2,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.55 : 3,737.70 = 1,660.64 : x
  2. Step 2: Convert to fraction form
    2,708.55/3,737.70 = 1,660.64/x
  3. Step 3: Cross multiply
    2,708.55x = 3,737.70 × 1,660.64
  4. Step 4: Simplify right side
    2,708.55x = 6,206,955.44
  5. Step 5: Solve for x
    x = 6,206,955.44/2,708.55
  6. Step 6: Final answer
    x = 2,291.62

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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.