Home / 2,132.70-2,943.12-1,249.03

Finding the Fourth Proportional to 2,132.70, 2,943.12 and 1,249.03

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Solution

The fourth proportional to 2,132.70, 2,943.12 and 1,249.03 is: 1,723.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.70 : 2,943.12 = 1,249.03 : x
  2. Step 2: Convert to fraction form
    2,132.70/2,943.12 = 1,249.03/x
  3. Step 3: Cross multiply
    2,132.70x = 2,943.12 × 1,249.03
  4. Step 4: Simplify right side
    2,132.70x = 3,676,045.17
  5. Step 5: Solve for x
    x = 3,676,045.17/2,132.70
  6. Step 6: Final answer
    x = 1,723.66

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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.