Home / 5,287.11-7,921.17-4,974.81

Finding the Fourth Proportional to 5,287.11, 7,921.17 and 4,974.81

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Solution

The fourth proportional to 5,287.11, 7,921.17 and 4,974.81 is: 7,453.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.11 : 7,921.17 = 4,974.81 : x
  2. Step 2: Convert to fraction form
    5,287.11/7,921.17 = 4,974.81/x
  3. Step 3: Cross multiply
    5,287.11x = 7,921.17 × 4,974.81
  4. Step 4: Simplify right side
    5,287.11x = 39,406,315.73
  5. Step 5: Solve for x
    x = 39,406,315.73/5,287.11
  6. Step 6: Final answer
    x = 7,453.28

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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.