Home / 3,987,625.80-5,981,438.70-2,916,870.60

Finding the Fourth Proportional to 3,987,625.80, 5,981,438.70 and 2,916,870.60

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Solution

The fourth proportional to 3,987,625.80, 5,981,438.70 and 2,916,870.60 is: 4,375,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,625.80 : 5,981,438.70 = 2,916,870.60 : x
  2. Step 2: Convert to fraction form
    3,987,625.80/5,981,438.70 = 2,916,870.60/x
  3. Step 3: Cross multiply
    3,987,625.80x = 5,981,438.70 × 2,916,870.60
  4. Step 4: Simplify right side
    3,987,625.80x = 17,447,082,689,732.22
  5. Step 5: Solve for x
    x = 17,447,082,689,732.22/3,987,625.80
  6. Step 6: Final answer
    x = 4,375,305.90

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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.