Home / 3,760.41-5,638.83-1,126.90

Finding the Fourth Proportional to 3,760.41, 5,638.83 and 1,126.90

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Solution

The fourth proportional to 3,760.41, 5,638.83 and 1,126.90 is: 1,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.41 : 5,638.83 = 1,126.90 : x
  2. Step 2: Convert to fraction form
    3,760.41/5,638.83 = 1,126.90/x
  3. Step 3: Cross multiply
    3,760.41x = 5,638.83 × 1,126.90
  4. Step 4: Simplify right side
    3,760.41x = 6,354,369.33
  5. Step 5: Solve for x
    x = 6,354,369.33/3,760.41
  6. Step 6: Final answer
    x = 1,689.81

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1.5x scale

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.