Home / 3,806.98-5,711.34-1,615.78

Finding the Fourth Proportional to 3,806.98, 5,711.34 and 1,615.78

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Solution

The fourth proportional to 3,806.98, 5,711.34 and 1,615.78 is: 2,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.98 : 5,711.34 = 1,615.78 : x
  2. Step 2: Convert to fraction form
    3,806.98/5,711.34 = 1,615.78/x
  3. Step 3: Cross multiply
    3,806.98x = 5,711.34 × 1,615.78
  4. Step 4: Simplify right side
    3,806.98x = 9,228,268.95
  5. Step 5: Solve for x
    x = 9,228,268.95/3,806.98
  6. Step 6: Final answer
    x = 2,424.04

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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.