Home / 2,132.57-2,943.18-1,249.12

Finding the Fourth Proportional to 2,132.57, 2,943.18 and 1,249.12

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Solution

The fourth proportional to 2,132.57, 2,943.18 and 1,249.12 is: 1,723.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.57 : 2,943.18 = 1,249.12 : x
  2. Step 2: Convert to fraction form
    2,132.57/2,943.18 = 1,249.12/x
  3. Step 3: Cross multiply
    2,132.57x = 2,943.18 × 1,249.12
  4. Step 4: Simplify right side
    2,132.57x = 3,676,377.64
  5. Step 5: Solve for x
    x = 3,676,377.64/2,132.57
  6. Step 6: Final answer
    x = 1,723.92

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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.