Home / 3,387.49-5,079.92-1,165.90

Finding the Fourth Proportional to 3,387.49, 5,079.92 and 1,165.90

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Solution

The fourth proportional to 3,387.49, 5,079.92 and 1,165.90 is: 1,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.49 : 5,079.92 = 1,165.90 : x
  2. Step 2: Convert to fraction form
    3,387.49/5,079.92 = 1,165.90/x
  3. Step 3: Cross multiply
    3,387.49x = 5,079.92 × 1,165.90
  4. Step 4: Simplify right side
    3,387.49x = 5,922,693.85
  5. Step 5: Solve for x
    x = 5,922,693.85/3,387.49
  6. Step 6: Final answer
    x = 1,748.40

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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.