Home / 8,187.39-12,282.84-2,922.66

Finding the Fourth Proportional to 8,187.39, 12,282.84 and 2,922.66

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Solution

The fourth proportional to 8,187.39, 12,282.84 and 2,922.66 is: 4,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.39 : 12,282.84 = 2,922.66 : x
  2. Step 2: Convert to fraction form
    8,187.39/12,282.84 = 2,922.66/x
  3. Step 3: Cross multiply
    8,187.39x = 12,282.84 × 2,922.66
  4. Step 4: Simplify right side
    8,187.39x = 35,898,565.15
  5. Step 5: Solve for x
    x = 35,898,565.15/8,187.39
  6. Step 6: Final answer
    x = 4,384.62

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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.