Home / 8,370.50-12,546.90-2,821.91

Finding the Fourth Proportional to 8,370.50, 12,546.90 and 2,821.91

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Solution

The fourth proportional to 8,370.50, 12,546.90 and 2,821.91 is: 4,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.50 : 12,546.90 = 2,821.91 : x
  2. Step 2: Convert to fraction form
    8,370.50/12,546.90 = 2,821.91/x
  3. Step 3: Cross multiply
    8,370.50x = 12,546.90 × 2,821.91
  4. Step 4: Simplify right side
    8,370.50x = 35,406,159.84
  5. Step 5: Solve for x
    x = 35,406,159.84/8,370.50
  6. Step 6: Final answer
    x = 4,229.88

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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.