Home / 6,385.50-8,806.32-4,145.24

Finding the Fourth Proportional to 6,385.50, 8,806.32 and 4,145.24

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Solution

The fourth proportional to 6,385.50, 8,806.32 and 4,145.24 is: 5,716.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.50 : 8,806.32 = 4,145.24 : x
  2. Step 2: Convert to fraction form
    6,385.50/8,806.32 = 4,145.24/x
  3. Step 3: Cross multiply
    6,385.50x = 8,806.32 × 4,145.24
  4. Step 4: Simplify right side
    6,385.50x = 36,504,331.93
  5. Step 5: Solve for x
    x = 36,504,331.93/6,385.50
  6. Step 6: Final answer
    x = 5,716.75

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Double scale
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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.