Home / 3,861.20-5,787.48-1,550

Finding the Fourth Proportional to 3,861.20, 5,787.48 and 1,550

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Solution

The fourth proportional to 3,861.20, 5,787.48 and 1,550 is: 2,323.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.20 : 5,787.48 = 1,550 : x
  2. Step 2: Convert to fraction form
    3,861.20/5,787.48 = 1,550/x
  3. Step 3: Cross multiply
    3,861.20x = 5,787.48 × 1,550
  4. Step 4: Simplify right side
    3,861.20x = 8,970,594
  5. Step 5: Solve for x
    x = 8,970,594/3,861.20
  6. Step 6: Final answer
    x = 2,323.27

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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.