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Finding the Fourth Proportional to 2,695.23, 4,042.85 and 747.59

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Solution

The fourth proportional to 2,695.23, 4,042.85 and 747.59 is: 1,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.23 : 4,042.85 = 747.59 : x
  2. Step 2: Convert to fraction form
    2,695.23/4,042.85 = 747.59/x
  3. Step 3: Cross multiply
    2,695.23x = 4,042.85 × 747.59
  4. Step 4: Simplify right side
    2,695.23x = 3,022,370.28
  5. Step 5: Solve for x
    x = 3,022,370.28/2,695.23
  6. Step 6: Final answer
    x = 1,121.38

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1.5x scale

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.