Home / 2,134.08-2,945.12-1,249.76

Finding the Fourth Proportional to 2,134.08, 2,945.12 and 1,249.76

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Solution

The fourth proportional to 2,134.08, 2,945.12 and 1,249.76 is: 1,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.08 : 2,945.12 = 1,249.76 : x
  2. Step 2: Convert to fraction form
    2,134.08/2,945.12 = 1,249.76/x
  3. Step 3: Cross multiply
    2,134.08x = 2,945.12 × 1,249.76
  4. Step 4: Simplify right side
    2,134.08x = 3,680,693.17
  5. Step 5: Solve for x
    x = 3,680,693.17/2,134.08
  6. Step 6: Final answer
    x = 1,724.72

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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.