Home / 3,838.80-5,757.58-1,373.20

Finding the Fourth Proportional to 3,838.80, 5,757.58 and 1,373.20

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Solution

The fourth proportional to 3,838.80, 5,757.58 and 1,373.20 is: 2,059.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.80 : 5,757.58 = 1,373.20 : x
  2. Step 2: Convert to fraction form
    3,838.80/5,757.58 = 1,373.20/x
  3. Step 3: Cross multiply
    3,838.80x = 5,757.58 × 1,373.20
  4. Step 4: Simplify right side
    3,838.80x = 7,906,308.86
  5. Step 5: Solve for x
    x = 7,906,308.86/3,838.80
  6. Step 6: Final answer
    x = 2,059.58

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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.