Home / 7,717.28-11,574.72-2,170.04

Finding the Fourth Proportional to 7,717.28, 11,574.72 and 2,170.04

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Solution

The fourth proportional to 7,717.28, 11,574.72 and 2,170.04 is: 3,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.28 : 11,574.72 = 2,170.04 : x
  2. Step 2: Convert to fraction form
    7,717.28/11,574.72 = 2,170.04/x
  3. Step 3: Cross multiply
    7,717.28x = 11,574.72 × 2,170.04
  4. Step 4: Simplify right side
    7,717.28x = 25,117,605.39
  5. Step 5: Solve for x
    x = 25,117,605.39/7,717.28
  6. Step 6: Final answer
    x = 3,254.72

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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.