Home / 10,649.92-15,974.88-2,858.44

Finding the Fourth Proportional to 10,649.92, 15,974.88 and 2,858.44

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Solution

The fourth proportional to 10,649.92, 15,974.88 and 2,858.44 is: 4,287.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649.92 : 15,974.88 = 2,858.44 : x
  2. Step 2: Convert to fraction form
    10,649.92/15,974.88 = 2,858.44/x
  3. Step 3: Cross multiply
    10,649.92x = 15,974.88 × 2,858.44
  4. Step 4: Simplify right side
    10,649.92x = 45,663,235.99
  5. Step 5: Solve for x
    x = 45,663,235.99/10,649.92
  6. Step 6: Final answer
    x = 4,287.66

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.