Home / 3,760.32-5,638.97-1,126.91

Finding the Fourth Proportional to 3,760.32, 5,638.97 and 1,126.91

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Solution

The fourth proportional to 3,760.32, 5,638.97 and 1,126.91 is: 1,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.32 : 5,638.97 = 1,126.91 : x
  2. Step 2: Convert to fraction form
    3,760.32/5,638.97 = 1,126.91/x
  3. Step 3: Cross multiply
    3,760.32x = 5,638.97 × 1,126.91
  4. Step 4: Simplify right side
    3,760.32x = 6,354,577.85
  5. Step 5: Solve for x
    x = 6,354,577.85/3,760.32
  6. Step 6: Final answer
    x = 1,689.90

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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.