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Finding the Fourth Proportional to 1,600.28, 2,398.80 and 676.41

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Solution

The fourth proportional to 1,600.28, 2,398.80 and 676.41 is: 1,013.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.28 : 2,398.80 = 676.41 : x
  2. Step 2: Convert to fraction form
    1,600.28/2,398.80 = 676.41/x
  3. Step 3: Cross multiply
    1,600.28x = 2,398.80 × 676.41
  4. Step 4: Simplify right side
    1,600.28x = 1,622,572.31
  5. Step 5: Solve for x
    x = 1,622,572.31/1,600.28
  6. Step 6: Final answer
    x = 1,013.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.