Home / 3,689.72-5,534.66-1,191.38

Finding the Fourth Proportional to 3,689.72, 5,534.66 and 1,191.38

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Solution

The fourth proportional to 3,689.72, 5,534.66 and 1,191.38 is: 1,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.72 : 5,534.66 = 1,191.38 : x
  2. Step 2: Convert to fraction form
    3,689.72/5,534.66 = 1,191.38/x
  3. Step 3: Cross multiply
    3,689.72x = 5,534.66 × 1,191.38
  4. Step 4: Simplify right side
    3,689.72x = 6,593,883.23
  5. Step 5: Solve for x
    x = 6,593,883.23/3,689.72
  6. Step 6: Final answer
    x = 1,787.10

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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.