Home / 5,152.12-7,722.79-2,380.61

Finding the Fourth Proportional to 5,152.12, 7,722.79 and 2,380.61

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Solution

The fourth proportional to 5,152.12, 7,722.79 and 2,380.61 is: 3,568.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.12 : 7,722.79 = 2,380.61 : x
  2. Step 2: Convert to fraction form
    5,152.12/7,722.79 = 2,380.61/x
  3. Step 3: Cross multiply
    5,152.12x = 7,722.79 × 2,380.61
  4. Step 4: Simplify right side
    5,152.12x = 18,384,960.07
  5. Step 5: Solve for x
    x = 18,384,960.07/5,152.12
  6. Step 6: Final answer
    x = 3,568.42

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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.