Home / 6,861.34-9,468.56-3,877.12

Finding the Fourth Proportional to 6,861.34, 9,468.56 and 3,877.12

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Solution

The fourth proportional to 6,861.34, 9,468.56 and 3,877.12 is: 5,350.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.34 : 9,468.56 = 3,877.12 : x
  2. Step 2: Convert to fraction form
    6,861.34/9,468.56 = 3,877.12/x
  3. Step 3: Cross multiply
    6,861.34x = 9,468.56 × 3,877.12
  4. Step 4: Simplify right side
    6,861.34x = 36,710,743.35
  5. Step 5: Solve for x
    x = 36,710,743.35/6,861.34
  6. Step 6: Final answer
    x = 5,350.38

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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.