Home / 4,478.88-6,718.39-1,191.96

Finding the Fourth Proportional to 4,478.88, 6,718.39 and 1,191.96

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Solution

The fourth proportional to 4,478.88, 6,718.39 and 1,191.96 is: 1,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.88 : 6,718.39 = 1,191.96 : x
  2. Step 2: Convert to fraction form
    4,478.88/6,718.39 = 1,191.96/x
  3. Step 3: Cross multiply
    4,478.88x = 6,718.39 × 1,191.96
  4. Step 4: Simplify right side
    4,478.88x = 8,008,049.16
  5. Step 5: Solve for x
    x = 8,008,049.16/4,478.88
  6. Step 6: Final answer
    x = 1,787.96

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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.