Home / 2,961.50-4,436.40-1,791.80

Finding the Fourth Proportional to 2,961.50, 4,436.40 and 1,791.80

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Solution

The fourth proportional to 2,961.50, 4,436.40 and 1,791.80 is: 2,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.50 : 4,436.40 = 1,791.80 : x
  2. Step 2: Convert to fraction form
    2,961.50/4,436.40 = 1,791.80/x
  3. Step 3: Cross multiply
    2,961.50x = 4,436.40 × 1,791.80
  4. Step 4: Simplify right side
    2,961.50x = 7,949,141.52
  5. Step 5: Solve for x
    x = 7,949,141.52/2,961.50
  6. Step 6: Final answer
    x = 2,684.16

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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.