Home / 3,929,087.20-5,418,905.52-2,317,900

Finding the Fourth Proportional to 3,929,087.20, 5,418,905.52 and 2,317,900

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Solution

The fourth proportional to 3,929,087.20, 5,418,905.52 and 2,317,900 is: 3,196,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,087.20 : 5,418,905.52 = 2,317,900 : x
  2. Step 2: Convert to fraction form
    3,929,087.20/5,418,905.52 = 2,317,900/x
  3. Step 3: Cross multiply
    3,929,087.20x = 5,418,905.52 × 2,317,900
  4. Step 4: Simplify right side
    3,929,087.20x = 12,560,481,104,808.00
  5. Step 5: Solve for x
    x = 12,560,481,104,808.00/3,929,087.20
  6. Step 6: Final answer
    x = 3,196,793.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.