Home / 3,149.26-4,376.07-3,115.07

Finding the Fourth Proportional to 3,149.26, 4,376.07 and 3,115.07

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Solution

The fourth proportional to 3,149.26, 4,376.07 and 3,115.07 is: 4,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.26 : 4,376.07 = 3,115.07 : x
  2. Step 2: Convert to fraction form
    3,149.26/4,376.07 = 3,115.07/x
  3. Step 3: Cross multiply
    3,149.26x = 4,376.07 × 3,115.07
  4. Step 4: Simplify right side
    3,149.26x = 13,631,764.37
  5. Step 5: Solve for x
    x = 13,631,764.37/3,149.26
  6. Step 6: Final answer
    x = 4,328.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.