Home / 6,385.60-8,808.54-3,997.18

Finding the Fourth Proportional to 6,385.60, 8,808.54 and 3,997.18

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Solution

The fourth proportional to 6,385.60, 8,808.54 and 3,997.18 is: 5,513.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.60 : 8,808.54 = 3,997.18 : x
  2. Step 2: Convert to fraction form
    6,385.60/8,808.54 = 3,997.18/x
  3. Step 3: Cross multiply
    6,385.60x = 8,808.54 × 3,997.18
  4. Step 4: Simplify right side
    6,385.60x = 35,209,319.92
  5. Step 5: Solve for x
    x = 35,209,319.92/6,385.60
  6. Step 6: Final answer
    x = 5,513.86

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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.