Home / 7,716.16-11,572.42-2,170.02

Finding the Fourth Proportional to 7,716.16, 11,572.42 and 2,170.02

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Solution

The fourth proportional to 7,716.16, 11,572.42 and 2,170.02 is: 3,254.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.16 : 11,572.42 = 2,170.02 : x
  2. Step 2: Convert to fraction form
    7,716.16/11,572.42 = 2,170.02/x
  3. Step 3: Cross multiply
    7,716.16x = 11,572.42 × 2,170.02
  4. Step 4: Simplify right side
    7,716.16x = 25,112,382.85
  5. Step 5: Solve for x
    x = 25,112,382.85/7,716.16
  6. Step 6: Final answer
    x = 3,254.52

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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.