Home / 4,218.86-6,317.25-2,753.90

Finding the Fourth Proportional to 4,218.86, 6,317.25 and 2,753.90

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Solution

The fourth proportional to 4,218.86, 6,317.25 and 2,753.90 is: 4,123.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.86 : 6,317.25 = 2,753.90 : x
  2. Step 2: Convert to fraction form
    4,218.86/6,317.25 = 2,753.90/x
  3. Step 3: Cross multiply
    4,218.86x = 6,317.25 × 2,753.90
  4. Step 4: Simplify right side
    4,218.86x = 17,397,074.78
  5. Step 5: Solve for x
    x = 17,397,074.78/4,218.86
  6. Step 6: Final answer
    x = 4,123.64

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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.