Home / 2,221.17-3,328.75-1,049.55

Finding the Fourth Proportional to 2,221.17, 3,328.75 and 1,049.55

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Solution

The fourth proportional to 2,221.17, 3,328.75 and 1,049.55 is: 1,572.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.17 : 3,328.75 = 1,049.55 : x
  2. Step 2: Convert to fraction form
    2,221.17/3,328.75 = 1,049.55/x
  3. Step 3: Cross multiply
    2,221.17x = 3,328.75 × 1,049.55
  4. Step 4: Simplify right side
    2,221.17x = 3,493,689.56
  5. Step 5: Solve for x
    x = 3,493,689.56/2,221.17
  6. Step 6: Final answer
    x = 1,572.91

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1.5x scale

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.