Home / 6,218.10-8,580.51-3,423.78

Finding the Fourth Proportional to 6,218.10, 8,580.51 and 3,423.78

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Solution

The fourth proportional to 6,218.10, 8,580.51 and 3,423.78 is: 4,724.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.10 : 8,580.51 = 3,423.78 : x
  2. Step 2: Convert to fraction form
    6,218.10/8,580.51 = 3,423.78/x
  3. Step 3: Cross multiply
    6,218.10x = 8,580.51 × 3,423.78
  4. Step 4: Simplify right side
    6,218.10x = 29,377,778.53
  5. Step 5: Solve for x
    x = 29,377,778.53/6,218.10
  6. Step 6: Final answer
    x = 4,724.56

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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.