Home / 3,989.22-5,504.28-2,310.53

Finding the Fourth Proportional to 3,989.22, 5,504.28 and 2,310.53

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Solution

The fourth proportional to 3,989.22, 5,504.28 and 2,310.53 is: 3,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.22 : 5,504.28 = 2,310.53 : x
  2. Step 2: Convert to fraction form
    3,989.22/5,504.28 = 2,310.53/x
  3. Step 3: Cross multiply
    3,989.22x = 5,504.28 × 2,310.53
  4. Step 4: Simplify right side
    3,989.22x = 12,717,776.55
  5. Step 5: Solve for x
    x = 12,717,776.55/3,989.22
  6. Step 6: Final answer
    x = 3,188.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.