Home / 4,478.62-6,717.18-1,191.76

Finding the Fourth Proportional to 4,478.62, 6,717.18 and 1,191.76

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Solution

The fourth proportional to 4,478.62, 6,717.18 and 1,191.76 is: 1,787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.62 : 6,717.18 = 1,191.76 : x
  2. Step 2: Convert to fraction form
    4,478.62/6,717.18 = 1,191.76/x
  3. Step 3: Cross multiply
    4,478.62x = 6,717.18 × 1,191.76
  4. Step 4: Simplify right side
    4,478.62x = 8,005,266.44
  5. Step 5: Solve for x
    x = 8,005,266.44/4,478.62
  6. Step 6: Final answer
    x = 1,787.44

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1.5x scale

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.