Home / 5,149.40-7,723.57-3,494.15

Finding the Fourth Proportional to 5,149.40, 7,723.57 and 3,494.15

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Solution

The fourth proportional to 5,149.40, 7,723.57 and 3,494.15 is: 5,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.40 : 7,723.57 = 3,494.15 : x
  2. Step 2: Convert to fraction form
    5,149.40/7,723.57 = 3,494.15/x
  3. Step 3: Cross multiply
    5,149.40x = 7,723.57 × 3,494.15
  4. Step 4: Simplify right side
    5,149.40x = 26,987,296.40
  5. Step 5: Solve for x
    x = 26,987,296.40/5,149.40
  6. Step 6: Final answer
    x = 5,240.86

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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.