Home / 2,221.71-3,332.55-1,248.49

Finding the Fourth Proportional to 2,221.71, 3,332.55 and 1,248.49

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Solution

The fourth proportional to 2,221.71, 3,332.55 and 1,248.49 is: 1,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.71 : 3,332.55 = 1,248.49 : x
  2. Step 2: Convert to fraction form
    2,221.71/3,332.55 = 1,248.49/x
  3. Step 3: Cross multiply
    2,221.71x = 3,332.55 × 1,248.49
  4. Step 4: Simplify right side
    2,221.71x = 4,160,655.35
  5. Step 5: Solve for x
    x = 4,160,655.35/2,221.71
  6. Step 6: Final answer
    x = 1,872.73

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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.