Home / 8,920.58-13,380.35-2,680.46

Finding the Fourth Proportional to 8,920.58, 13,380.35 and 2,680.46

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Solution

The fourth proportional to 8,920.58, 13,380.35 and 2,680.46 is: 4,020.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.58 : 13,380.35 = 2,680.46 : x
  2. Step 2: Convert to fraction form
    8,920.58/13,380.35 = 2,680.46/x
  3. Step 3: Cross multiply
    8,920.58x = 13,380.35 × 2,680.46
  4. Step 4: Simplify right side
    8,920.58x = 35,865,426.06
  5. Step 5: Solve for x
    x = 35,865,426.06/8,920.58
  6. Step 6: Final answer
    x = 4,020.53

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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.