Home / 3,757.85-5,636.91-1,125.38

Finding the Fourth Proportional to 3,757.85, 5,636.91 and 1,125.38

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Solution

The fourth proportional to 3,757.85, 5,636.91 and 1,125.38 is: 1,688.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,757.85 : 5,636.91 = 1,125.38 : x
  2. Step 2: Convert to fraction form
    3,757.85/5,636.91 = 1,125.38/x
  3. Step 3: Cross multiply
    3,757.85x = 5,636.91 × 1,125.38
  4. Step 4: Simplify right side
    3,757.85x = 6,343,665.78
  5. Step 5: Solve for x
    x = 6,343,665.78/3,757.85
  6. Step 6: Final answer
    x = 1,688.11

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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.