Home / 3,790.38-5,679.15-2,689.26

Finding the Fourth Proportional to 3,790.38, 5,679.15 and 2,689.26

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Solution

The fourth proportional to 3,790.38, 5,679.15 and 2,689.26 is: 4,029.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.38 : 5,679.15 = 2,689.26 : x
  2. Step 2: Convert to fraction form
    3,790.38/5,679.15 = 2,689.26/x
  3. Step 3: Cross multiply
    3,790.38x = 5,679.15 × 2,689.26
  4. Step 4: Simplify right side
    3,790.38x = 15,272,710.93
  5. Step 5: Solve for x
    x = 15,272,710.93/3,790.38
  6. Step 6: Final answer
    x = 4,029.34

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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.