Home / 6,649.11-9,175.55-3,665

Finding the Fourth Proportional to 6,649.11, 9,175.55 and 3,665

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Solution

The fourth proportional to 6,649.11, 9,175.55 and 3,665 is: 5,057.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.11 : 9,175.55 = 3,665 : x
  2. Step 2: Convert to fraction form
    6,649.11/9,175.55 = 3,665/x
  3. Step 3: Cross multiply
    6,649.11x = 9,175.55 × 3,665
  4. Step 4: Simplify right side
    6,649.11x = 33,628,390.75
  5. Step 5: Solve for x
    x = 33,628,390.75/6,649.11
  6. Step 6: Final answer
    x = 5,057.58

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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.