Home / 6,247.38-8,618.79-4,008.78

Finding the Fourth Proportional to 6,247.38, 8,618.79 and 4,008.78

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Solution

The fourth proportional to 6,247.38, 8,618.79 and 4,008.78 is: 5,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247.38 : 8,618.79 = 4,008.78 : x
  2. Step 2: Convert to fraction form
    6,247.38/8,618.79 = 4,008.78/x
  3. Step 3: Cross multiply
    6,247.38x = 8,618.79 × 4,008.78
  4. Step 4: Simplify right side
    6,247.38x = 34,550,832.98
  5. Step 5: Solve for x
    x = 34,550,832.98/6,247.38
  6. Step 6: Final answer
    x = 5,530.45

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Half 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.