Home / 5,454.78-8,169.30-2,672.70

Finding the Fourth Proportional to 5,454.78, 8,169.30 and 2,672.70

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Solution

The fourth proportional to 5,454.78, 8,169.30 and 2,672.70 is: 4,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.78 : 8,169.30 = 2,672.70 : x
  2. Step 2: Convert to fraction form
    5,454.78/8,169.30 = 2,672.70/x
  3. Step 3: Cross multiply
    5,454.78x = 8,169.30 × 2,672.70
  4. Step 4: Simplify right side
    5,454.78x = 21,834,088.11
  5. Step 5: Solve for x
    x = 21,834,088.11/5,454.78
  6. Step 6: Final answer
    x = 4,002.74

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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.