Home / 1,118.97-1,676.84-1,042.29

Finding the Fourth Proportional to 1,118.97, 1,676.84 and 1,042.29

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Solution

The fourth proportional to 1,118.97, 1,676.84 and 1,042.29 is: 1,561.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.97 : 1,676.84 = 1,042.29 : x
  2. Step 2: Convert to fraction form
    1,118.97/1,676.84 = 1,042.29/x
  3. Step 3: Cross multiply
    1,118.97x = 1,676.84 × 1,042.29
  4. Step 4: Simplify right side
    1,118.97x = 1,747,748.35
  5. Step 5: Solve for x
    x = 1,747,748.35/1,118.97
  6. Step 6: Final answer
    x = 1,561.93

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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.