Home / 1,137.26-1,704.45-1,125.02

Finding the Fourth Proportional to 1,137.26, 1,704.45 and 1,125.02

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Solution

The fourth proportional to 1,137.26, 1,704.45 and 1,125.02 is: 1,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137.26 : 1,704.45 = 1,125.02 : x
  2. Step 2: Convert to fraction form
    1,137.26/1,704.45 = 1,125.02/x
  3. Step 3: Cross multiply
    1,137.26x = 1,704.45 × 1,125.02
  4. Step 4: Simplify right side
    1,137.26x = 1,917,540.34
  5. Step 5: Solve for x
    x = 1,917,540.34/1,137.26
  6. Step 6: Final answer
    x = 1,686.11

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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.