Home / 3,642.10-5,459.55-1,447.90

Finding the Fourth Proportional to 3,642.10, 5,459.55 and 1,447.90

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Solution

The fourth proportional to 3,642.10, 5,459.55 and 1,447.90 is: 2,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.10 : 5,459.55 = 1,447.90 : x
  2. Step 2: Convert to fraction form
    3,642.10/5,459.55 = 1,447.90/x
  3. Step 3: Cross multiply
    3,642.10x = 5,459.55 × 1,447.90
  4. Step 4: Simplify right side
    3,642.10x = 7,904,882.45
  5. Step 5: Solve for x
    x = 7,904,882.45/3,642.10
  6. Step 6: Final answer
    x = 2,170.42

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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.