Home / 3,239.28-4,469.94-1,913.04

Finding the Fourth Proportional to 3,239.28, 4,469.94 and 1,913.04

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Solution

The fourth proportional to 3,239.28, 4,469.94 and 1,913.04 is: 2,639.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.28 : 4,469.94 = 1,913.04 : x
  2. Step 2: Convert to fraction form
    3,239.28/4,469.94 = 1,913.04/x
  3. Step 3: Cross multiply
    3,239.28x = 4,469.94 × 1,913.04
  4. Step 4: Simplify right side
    3,239.28x = 8,551,174.02
  5. Step 5: Solve for x
    x = 8,551,174.02/3,239.28
  6. Step 6: Final answer
    x = 2,639.84

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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.