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Finding the Fourth Proportional to 1,044.98, 1,444.12 and 765.54

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Solution

The fourth proportional to 1,044.98, 1,444.12 and 765.54 is: 1,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.98 : 1,444.12 = 765.54 : x
  2. Step 2: Convert to fraction form
    1,044.98/1,444.12 = 765.54/x
  3. Step 3: Cross multiply
    1,044.98x = 1,444.12 × 765.54
  4. Step 4: Simplify right side
    1,044.98x = 1,105,531.62
  5. Step 5: Solve for x
    x = 1,105,531.62/1,044.98
  6. Step 6: Final answer
    x = 1,057.95

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1.5x scale

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.