Home / 4,478.20-6,717.27-1,191.53

Finding the Fourth Proportional to 4,478.20, 6,717.27 and 1,191.53

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Solution

The fourth proportional to 4,478.20, 6,717.27 and 1,191.53 is: 1,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.20 : 6,717.27 = 1,191.53 : x
  2. Step 2: Convert to fraction form
    4,478.20/6,717.27 = 1,191.53/x
  3. Step 3: Cross multiply
    4,478.20x = 6,717.27 × 1,191.53
  4. Step 4: Simplify right side
    4,478.20x = 8,003,789.18
  5. Step 5: Solve for x
    x = 8,003,789.18/4,478.20
  6. Step 6: Final answer
    x = 1,787.28

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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.