Home / 8,920.83-13,382.01-2,680.41

Finding the Fourth Proportional to 8,920.83, 13,382.01 and 2,680.41

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Solution

The fourth proportional to 8,920.83, 13,382.01 and 2,680.41 is: 4,020.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.83 : 13,382.01 = 2,680.41 : x
  2. Step 2: Convert to fraction form
    8,920.83/13,382.01 = 2,680.41/x
  3. Step 3: Cross multiply
    8,920.83x = 13,382.01 × 2,680.41
  4. Step 4: Simplify right side
    8,920.83x = 35,869,273.42
  5. Step 5: Solve for x
    x = 35,869,273.42/8,920.83
  6. Step 6: Final answer
    x = 4,020.84

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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.