Home / 6,154.20-9,231.30-4,185.90

Finding the Fourth Proportional to 6,154.20, 9,231.30 and 4,185.90

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Solution

The fourth proportional to 6,154.20, 9,231.30 and 4,185.90 is: 6,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,154.20 : 9,231.30 = 4,185.90 : x
  2. Step 2: Convert to fraction form
    6,154.20/9,231.30 = 4,185.90/x
  3. Step 3: Cross multiply
    6,154.20x = 9,231.30 × 4,185.90
  4. Step 4: Simplify right side
    6,154.20x = 38,641,298.67
  5. Step 5: Solve for x
    x = 38,641,298.67/6,154.20
  6. Step 6: Final answer
    x = 6,278.85

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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.