Home / 2,144.64-3,211.92-1,045.56

Finding the Fourth Proportional to 2,144.64, 3,211.92 and 1,045.56

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Solution

The fourth proportional to 2,144.64, 3,211.92 and 1,045.56 is: 1,565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.64 : 3,211.92 = 1,045.56 : x
  2. Step 2: Convert to fraction form
    2,144.64/3,211.92 = 1,045.56/x
  3. Step 3: Cross multiply
    2,144.64x = 3,211.92 × 1,045.56
  4. Step 4: Simplify right side
    2,144.64x = 3,358,255.08
  5. Step 5: Solve for x
    x = 3,358,255.08/2,144.64
  6. Step 6: Final answer
    x = 1,565.88

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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.