Home / 3,890,947.05-5,330,572.62-3,745,443.64

Finding the Fourth Proportional to 3,890,947.05, 5,330,572.62 and 3,745,443.64

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Solution

The fourth proportional to 3,890,947.05, 5,330,572.62 and 3,745,443.64 is: 5,131,233.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890,947.05 : 5,330,572.62 = 3,745,443.64 : x
  2. Step 2: Convert to fraction form
    3,890,947.05/5,330,572.62 = 3,745,443.64/x
  3. Step 3: Cross multiply
    3,890,947.05x = 5,330,572.62 × 3,745,443.64
  4. Step 4: Simplify right side
    3,890,947.05x = 19,965,359,317,137.14
  5. Step 5: Solve for x
    x = 19,965,359,317,137.14/3,890,947.05
  6. Step 6: Final answer
    x = 5,131,233.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.