Home / 6,219.13-8,589.68-4,119.61

Finding the Fourth Proportional to 6,219.13, 8,589.68 and 4,119.61

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Solution

The fourth proportional to 6,219.13, 8,589.68 and 4,119.61 is: 5,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.13 : 8,589.68 = 4,119.61 : x
  2. Step 2: Convert to fraction form
    6,219.13/8,589.68 = 4,119.61/x
  3. Step 3: Cross multiply
    6,219.13x = 8,589.68 × 4,119.61
  4. Step 4: Simplify right side
    6,219.13x = 35,386,098.98
  5. Step 5: Solve for x
    x = 35,386,098.98/6,219.13
  6. Step 6: Final answer
    x = 5,689.88

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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.