Home / 3,221.72-4,443.16-2,557.52

Finding the Fourth Proportional to 3,221.72, 4,443.16 and 2,557.52

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Solution

The fourth proportional to 3,221.72, 4,443.16 and 2,557.52 is: 3,527.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.72 : 4,443.16 = 2,557.52 : x
  2. Step 2: Convert to fraction form
    3,221.72/4,443.16 = 2,557.52/x
  3. Step 3: Cross multiply
    3,221.72x = 4,443.16 × 2,557.52
  4. Step 4: Simplify right side
    3,221.72x = 11,363,470.56
  5. Step 5: Solve for x
    x = 11,363,470.56/3,221.72
  6. Step 6: Final answer
    x = 3,527.14

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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.