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Finding the Fourth Proportional to 2,708, 3,737.76 and 1,777.76

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Solution

The fourth proportional to 2,708, 3,737.76 and 1,777.76 is: 2,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708 : 3,737.76 = 1,777.76 : x
  2. Step 2: Convert to fraction form
    2,708/3,737.76 = 1,777.76/x
  3. Step 3: Cross multiply
    2,708x = 3,737.76 × 1,777.76
  4. Step 4: Simplify right side
    2,708x = 6,644,840.22
  5. Step 5: Solve for x
    x = 6,644,840.22/2,708
  6. Step 6: Final answer
    x = 2,453.78

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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.