Home / 6,861.44-9,468.98-3,877.40

Finding the Fourth Proportional to 6,861.44, 9,468.98 and 3,877.40

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Solution

The fourth proportional to 6,861.44, 9,468.98 and 3,877.40 is: 5,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.44 : 9,468.98 = 3,877.40 : x
  2. Step 2: Convert to fraction form
    6,861.44/9,468.98 = 3,877.40/x
  3. Step 3: Cross multiply
    6,861.44x = 9,468.98 × 3,877.40
  4. Step 4: Simplify right side
    6,861.44x = 36,715,023.05
  5. Step 5: Solve for x
    x = 36,715,023.05/6,861.44
  6. Step 6: Final answer
    x = 5,350.92

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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.