Home / 7,877.85-11,809.77-3,201.31

Finding the Fourth Proportional to 7,877.85, 11,809.77 and 3,201.31

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Solution

The fourth proportional to 7,877.85, 11,809.77 and 3,201.31 is: 4,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.85 : 11,809.77 = 3,201.31 : x
  2. Step 2: Convert to fraction form
    7,877.85/11,809.77 = 3,201.31/x
  3. Step 3: Cross multiply
    7,877.85x = 11,809.77 × 3,201.31
  4. Step 4: Simplify right side
    7,877.85x = 37,806,734.80
  5. Step 5: Solve for x
    x = 37,806,734.80/7,877.85
  6. Step 6: Final answer
    x = 4,799.12

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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.