Home / 3,431,752.78-4,736,238.84-1,981,445.78

Finding the Fourth Proportional to 3,431,752.78, 4,736,238.84 and 1,981,445.78

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Solution

The fourth proportional to 3,431,752.78, 4,736,238.84 and 1,981,445.78 is: 2,734,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431,752.78 : 4,736,238.84 = 1,981,445.78 : x
  2. Step 2: Convert to fraction form
    3,431,752.78/4,736,238.84 = 1,981,445.78/x
  3. Step 3: Cross multiply
    3,431,752.78x = 4,736,238.84 × 1,981,445.78
  4. Step 4: Simplify right side
    3,431,752.78x = 9,384,600,462,590.10
  5. Step 5: Solve for x
    x = 9,384,600,462,590.10/3,431,752.78
  6. Step 6: Final answer
    x = 2,734,637.68

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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.