Home / 3,902,815.28-5,385,624.86-2,160,366.77

Finding the Fourth Proportional to 3,902,815.28, 5,385,624.86 and 2,160,366.77

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Solution

The fourth proportional to 3,902,815.28, 5,385,624.86 and 2,160,366.77 is: 2,981,162.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902,815.28 : 5,385,624.86 = 2,160,366.77 : x
  2. Step 2: Convert to fraction form
    3,902,815.28/5,385,624.86 = 2,160,366.77/x
  3. Step 3: Cross multiply
    3,902,815.28x = 5,385,624.86 × 2,160,366.77
  4. Step 4: Simplify right side
    3,902,815.28x = 11,634,924,945,499.95
  5. Step 5: Solve for x
    x = 11,634,924,945,499.95/3,902,815.28
  6. Step 6: Final answer
    x = 2,981,162.09

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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.