Home / 3,639.44-5,459.88-1,449.20

Finding the Fourth Proportional to 3,639.44, 5,459.88 and 1,449.20

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Solution

The fourth proportional to 3,639.44, 5,459.88 and 1,449.20 is: 2,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.44 : 5,459.88 = 1,449.20 : x
  2. Step 2: Convert to fraction form
    3,639.44/5,459.88 = 1,449.20/x
  3. Step 3: Cross multiply
    3,639.44x = 5,459.88 × 1,449.20
  4. Step 4: Simplify right side
    3,639.44x = 7,912,458.10
  5. Step 5: Solve for x
    x = 7,912,458.10/3,639.44
  6. Step 6: Final answer
    x = 2,174.09

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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.