Home / 7,287.29-10,921.22-4,168.25

Finding the Fourth Proportional to 7,287.29, 10,921.22 and 4,168.25

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Solution

The fourth proportional to 7,287.29, 10,921.22 and 4,168.25 is: 6,246.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.29 : 10,921.22 = 4,168.25 : x
  2. Step 2: Convert to fraction form
    7,287.29/10,921.22 = 4,168.25/x
  3. Step 3: Cross multiply
    7,287.29x = 10,921.22 × 4,168.25
  4. Step 4: Simplify right side
    7,287.29x = 45,522,354.42
  5. Step 5: Solve for x
    x = 45,522,354.42/7,287.29
  6. Step 6: Final answer
    x = 6,246.82

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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.