Home / 7,717.25-11,575.80-1,873.87

Finding the Fourth Proportional to 7,717.25, 11,575.80 and 1,873.87

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Solution

The fourth proportional to 7,717.25, 11,575.80 and 1,873.87 is: 2,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.25 : 11,575.80 = 1,873.87 : x
  2. Step 2: Convert to fraction form
    7,717.25/11,575.80 = 1,873.87/x
  3. Step 3: Cross multiply
    7,717.25x = 11,575.80 × 1,873.87
  4. Step 4: Simplify right side
    7,717.25x = 21,691,515.41
  5. Step 5: Solve for x
    x = 21,691,515.41/7,717.25
  6. Step 6: Final answer
    x = 2,810.78

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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.