Home / 1,472.82-2,200.58-1,421.79

Finding the Fourth Proportional to 1,472.82, 2,200.58 and 1,421.79

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Solution

The fourth proportional to 1,472.82, 2,200.58 and 1,421.79 is: 2,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.82 : 2,200.58 = 1,421.79 : x
  2. Step 2: Convert to fraction form
    1,472.82/2,200.58 = 1,421.79/x
  3. Step 3: Cross multiply
    1,472.82x = 2,200.58 × 1,421.79
  4. Step 4: Simplify right side
    1,472.82x = 3,128,755.53
  5. Step 5: Solve for x
    x = 3,128,755.53/1,472.82
  6. Step 6: Final answer
    x = 2,124.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.