Home / 6,121.59-8,448.20-3,432.99

Finding the Fourth Proportional to 6,121.59, 8,448.20 and 3,432.99

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Solution

The fourth proportional to 6,121.59, 8,448.20 and 3,432.99 is: 4,737.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.59 : 8,448.20 = 3,432.99 : x
  2. Step 2: Convert to fraction form
    6,121.59/8,448.20 = 3,432.99/x
  3. Step 3: Cross multiply
    6,121.59x = 8,448.20 × 3,432.99
  4. Step 4: Simplify right side
    6,121.59x = 29,002,568.95
  5. Step 5: Solve for x
    x = 29,002,568.95/6,121.59
  6. Step 6: Final answer
    x = 4,737.75

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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.