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Finding the Fourth Proportional to 1,354.78, 2,026.80 and 1,044.28

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Solution

The fourth proportional to 1,354.78, 2,026.80 and 1,044.28 is: 1,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.78 : 2,026.80 = 1,044.28 : x
  2. Step 2: Convert to fraction form
    1,354.78/2,026.80 = 1,044.28/x
  3. Step 3: Cross multiply
    1,354.78x = 2,026.80 × 1,044.28
  4. Step 4: Simplify right side
    1,354.78x = 2,116,546.70
  5. Step 5: Solve for x
    x = 2,116,546.70/1,354.78
  6. Step 6: Final answer
    x = 1,562.28

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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.