Home / 1,135.20-1,701.38-587.06

Finding the Fourth Proportional to 1,135.20, 1,701.38 and 587.06

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Solution

The fourth proportional to 1,135.20, 1,701.38 and 587.06 is: 879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.20 : 1,701.38 = 587.06 : x
  2. Step 2: Convert to fraction form
    1,135.20/1,701.38 = 587.06/x
  3. Step 3: Cross multiply
    1,135.20x = 1,701.38 × 587.06
  4. Step 4: Simplify right side
    1,135.20x = 998,812.14
  5. Step 5: Solve for x
    x = 998,812.14/1,135.20
  6. Step 6: Final answer
    x = 879.86

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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.