Home / 2,221.82-3,332.40-1,397.57

Finding the Fourth Proportional to 2,221.82, 3,332.40 and 1,397.57

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Solution

The fourth proportional to 2,221.82, 3,332.40 and 1,397.57 is: 2,096.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.82 : 3,332.40 = 1,397.57 : x
  2. Step 2: Convert to fraction form
    2,221.82/3,332.40 = 1,397.57/x
  3. Step 3: Cross multiply
    2,221.82x = 3,332.40 × 1,397.57
  4. Step 4: Simplify right side
    2,221.82x = 4,657,262.27
  5. Step 5: Solve for x
    x = 4,657,262.27/2,221.82
  6. Step 6: Final answer
    x = 2,096.15

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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.