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Finding the Fourth Proportional to 3,387.37, 5,079.37 and 1,165.54

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Solution

The fourth proportional to 3,387.37, 5,079.37 and 1,165.54 is: 1,747.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.37 : 5,079.37 = 1,165.54 : x
  2. Step 2: Convert to fraction form
    3,387.37/5,079.37 = 1,165.54/x
  3. Step 3: Cross multiply
    3,387.37x = 5,079.37 × 1,165.54
  4. Step 4: Simplify right side
    3,387.37x = 5,920,208.91
  5. Step 5: Solve for x
    x = 5,920,208.91/3,387.37
  6. Step 6: Final answer
    x = 1,747.73

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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.