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Finding the Fourth Proportional to 1,877.76, 2,805.20 and 1,493.44

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Solution

The fourth proportional to 1,877.76, 2,805.20 and 1,493.44 is: 2,231.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.76 : 2,805.20 = 1,493.44 : x
  2. Step 2: Convert to fraction form
    1,877.76/2,805.20 = 1,493.44/x
  3. Step 3: Cross multiply
    1,877.76x = 2,805.20 × 1,493.44
  4. Step 4: Simplify right side
    1,877.76x = 4,189,397.89
  5. Step 5: Solve for x
    x = 4,189,397.89/1,877.76
  6. Step 6: Final answer
    x = 2,231.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.