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Finding the Fourth Proportional to 1,691.03, 2,333.88 and 1,027.76

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Solution

The fourth proportional to 1,691.03, 2,333.88 and 1,027.76 is: 1,418.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.03 : 2,333.88 = 1,027.76 : x
  2. Step 2: Convert to fraction form
    1,691.03/2,333.88 = 1,027.76/x
  3. Step 3: Cross multiply
    1,691.03x = 2,333.88 × 1,027.76
  4. Step 4: Simplify right side
    1,691.03x = 2,398,663.93
  5. Step 5: Solve for x
    x = 2,398,663.93/1,691.03
  6. Step 6: Final answer
    x = 1,418.46

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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.