Home / 1,418.41-2,123.96-868.92

Finding the Fourth Proportional to 1,418.41, 2,123.96 and 868.92

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Solution

The fourth proportional to 1,418.41, 2,123.96 and 868.92 is: 1,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.41 : 2,123.96 = 868.92 : x
  2. Step 2: Convert to fraction form
    1,418.41/2,123.96 = 868.92/x
  3. Step 3: Cross multiply
    1,418.41x = 2,123.96 × 868.92
  4. Step 4: Simplify right side
    1,418.41x = 1,845,551.32
  5. Step 5: Solve for x
    x = 1,845,551.32/1,418.41
  6. Step 6: Final answer
    x = 1,301.15

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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.