Home / 3,489.26-5,234.65-1,149.50

Finding the Fourth Proportional to 3,489.26, 5,234.65 and 1,149.50

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Solution

The fourth proportional to 3,489.26, 5,234.65 and 1,149.50 is: 1,724.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.26 : 5,234.65 = 1,149.50 : x
  2. Step 2: Convert to fraction form
    3,489.26/5,234.65 = 1,149.50/x
  3. Step 3: Cross multiply
    3,489.26x = 5,234.65 × 1,149.50
  4. Step 4: Simplify right side
    3,489.26x = 6,017,230.18
  5. Step 5: Solve for x
    x = 6,017,230.18/3,489.26
  6. Step 6: Final answer
    x = 1,724.50

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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.