Home / 5,790.20-7,990.52-3,399.55

Finding the Fourth Proportional to 5,790.20, 7,990.52 and 3,399.55

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Solution

The fourth proportional to 5,790.20, 7,990.52 and 3,399.55 is: 4,691.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.20 : 7,990.52 = 3,399.55 : x
  2. Step 2: Convert to fraction form
    5,790.20/7,990.52 = 3,399.55/x
  3. Step 3: Cross multiply
    5,790.20x = 7,990.52 × 3,399.55
  4. Step 4: Simplify right side
    5,790.20x = 27,164,180.76
  5. Step 5: Solve for x
    x = 27,164,180.76/5,790.20
  6. Step 6: Final answer
    x = 4,691.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.