Home / 3,281,974.72-4,920,412.45-2,126,780.97

Finding the Fourth Proportional to 3,281,974.72, 4,920,412.45 and 2,126,780.97

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Solution

The fourth proportional to 3,281,974.72, 4,920,412.45 and 2,126,780.97 is: 3,188,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281,974.72 : 4,920,412.45 = 2,126,780.97 : x
  2. Step 2: Convert to fraction form
    3,281,974.72/4,920,412.45 = 2,126,780.97/x
  3. Step 3: Cross multiply
    3,281,974.72x = 4,920,412.45 × 2,126,780.97
  4. Step 4: Simplify right side
    3,281,974.72x = 10,464,639,563,211.08
  5. Step 5: Solve for x
    x = 10,464,639,563,211.08/3,281,974.72
  6. Step 6: Final answer
    x = 3,188,519.25

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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.