Home / 3,984.90-5,976.52-3,787.30

Finding the Fourth Proportional to 3,984.90, 5,976.52 and 3,787.30

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Solution

The fourth proportional to 3,984.90, 5,976.52 and 3,787.30 is: 5,680.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.90 : 5,976.52 = 3,787.30 : x
  2. Step 2: Convert to fraction form
    3,984.90/5,976.52 = 3,787.30/x
  3. Step 3: Cross multiply
    3,984.90x = 5,976.52 × 3,787.30
  4. Step 4: Simplify right side
    3,984.90x = 22,634,874.20
  5. Step 5: Solve for x
    x = 22,634,874.20/3,984.90
  6. Step 6: Final answer
    x = 5,680.16

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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.