Home / 6,649.20-9,175.96-3,665.15

Finding the Fourth Proportional to 6,649.20, 9,175.96 and 3,665.15

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Solution

The fourth proportional to 6,649.20, 9,175.96 and 3,665.15 is: 5,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.20 : 9,175.96 = 3,665.15 : x
  2. Step 2: Convert to fraction form
    6,649.20/9,175.96 = 3,665.15/x
  3. Step 3: Cross multiply
    6,649.20x = 9,175.96 × 3,665.15
  4. Step 4: Simplify right side
    6,649.20x = 33,631,205.59
  5. Step 5: Solve for x
    x = 33,631,205.59/6,649.20
  6. Step 6: Final answer
    x = 5,057.94

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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.