Home / 5,169.42-7,132.57-3,015.61

Finding the Fourth Proportional to 5,169.42, 7,132.57 and 3,015.61

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Solution

The fourth proportional to 5,169.42, 7,132.57 and 3,015.61 is: 4,160.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.42 : 7,132.57 = 3,015.61 : x
  2. Step 2: Convert to fraction form
    5,169.42/7,132.57 = 3,015.61/x
  3. Step 3: Cross multiply
    5,169.42x = 7,132.57 × 3,015.61
  4. Step 4: Simplify right side
    5,169.42x = 21,509,081.13
  5. Step 5: Solve for x
    x = 21,509,081.13/5,169.42
  6. Step 6: Final answer
    x = 4,160.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.