Home / 5,155.03-7,729.07-2,380.17

Finding the Fourth Proportional to 5,155.03, 7,729.07 and 2,380.17

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Solution

The fourth proportional to 5,155.03, 7,729.07 and 2,380.17 is: 3,568.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.03 : 7,729.07 = 2,380.17 : x
  2. Step 2: Convert to fraction form
    5,155.03/7,729.07 = 2,380.17/x
  3. Step 3: Cross multiply
    5,155.03x = 7,729.07 × 2,380.17
  4. Step 4: Simplify right side
    5,155.03x = 18,396,515.97
  5. Step 5: Solve for x
    x = 18,396,515.97/5,155.03
  6. Step 6: Final answer
    x = 3,568.65

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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.