Home / 3,988,262.07-5,981,138.31-1,291,961.72

Finding the Fourth Proportional to 3,988,262.07, 5,981,138.31 and 1,291,961.72

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Solution

The fourth proportional to 3,988,262.07, 5,981,138.31 and 1,291,961.72 is: 1,937,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,262.07 : 5,981,138.31 = 1,291,961.72 : x
  2. Step 2: Convert to fraction form
    3,988,262.07/5,981,138.31 = 1,291,961.72/x
  3. Step 3: Cross multiply
    3,988,262.07x = 5,981,138.31 × 1,291,961.72
  4. Step 4: Simplify right side
    3,988,262.07x = 7,727,401,708,639.80
  5. Step 5: Solve for x
    x = 7,727,401,708,639.80/3,988,262.07
  6. Step 6: Final answer
    x = 1,937,536.09

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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.