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Finding the Fourth Proportional to 1,957.68, 2,702.36 and 1,327.88

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Solution

The fourth proportional to 1,957.68, 2,702.36 and 1,327.88 is: 1,832.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.68 : 2,702.36 = 1,327.88 : x
  2. Step 2: Convert to fraction form
    1,957.68/2,702.36 = 1,327.88/x
  3. Step 3: Cross multiply
    1,957.68x = 2,702.36 × 1,327.88
  4. Step 4: Simplify right side
    1,957.68x = 3,588,409.80
  5. Step 5: Solve for x
    x = 3,588,409.80/1,957.68
  6. Step 6: Final answer
    x = 1,832.99

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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.