Home / 8,545.20-12,819.40-2,702.66

Finding the Fourth Proportional to 8,545.20, 12,819.40 and 2,702.66

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Solution

The fourth proportional to 8,545.20, 12,819.40 and 2,702.66 is: 4,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.20 : 12,819.40 = 2,702.66 : x
  2. Step 2: Convert to fraction form
    8,545.20/12,819.40 = 2,702.66/x
  3. Step 3: Cross multiply
    8,545.20x = 12,819.40 × 2,702.66
  4. Step 4: Simplify right side
    8,545.20x = 34,646,479.60
  5. Step 5: Solve for x
    x = 34,646,479.60/8,545.20
  6. Step 6: Final answer
    x = 4,054.50

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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.