Home / 1,418.15-1,956.83-886.97

Finding the Fourth Proportional to 1,418.15, 1,956.83 and 886.97

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Solution

The fourth proportional to 1,418.15, 1,956.83 and 886.97 is: 1,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.15 : 1,956.83 = 886.97 : x
  2. Step 2: Convert to fraction form
    1,418.15/1,956.83 = 886.97/x
  3. Step 3: Cross multiply
    1,418.15x = 1,956.83 × 886.97
  4. Step 4: Simplify right side
    1,418.15x = 1,735,649.96
  5. Step 5: Solve for x
    x = 1,735,649.96/1,418.15
  6. Step 6: Final answer
    x = 1,223.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.