Home / 7,881.89-11,823.17-2,617.37

Finding the Fourth Proportional to 7,881.89, 11,823.17 and 2,617.37

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Solution

The fourth proportional to 7,881.89, 11,823.17 and 2,617.37 is: 3,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.89 : 11,823.17 = 2,617.37 : x
  2. Step 2: Convert to fraction form
    7,881.89/11,823.17 = 2,617.37/x
  3. Step 3: Cross multiply
    7,881.89x = 11,823.17 × 2,617.37
  4. Step 4: Simplify right side
    7,881.89x = 30,945,597.38
  5. Step 5: Solve for x
    x = 30,945,597.38/7,881.89
  6. Step 6: Final answer
    x = 3,926.16

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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.