Home / 3,943,734.78-5,442,354-2,132,898.78

Finding the Fourth Proportional to 3,943,734.78, 5,442,354 and 2,132,898.78

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Solution

The fourth proportional to 3,943,734.78, 5,442,354 and 2,132,898.78 is: 2,943,400.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943,734.78 : 5,442,354 = 2,132,898.78 : x
  2. Step 2: Convert to fraction form
    3,943,734.78/5,442,354 = 2,132,898.78/x
  3. Step 3: Cross multiply
    3,943,734.78x = 5,442,354 × 2,132,898.78
  4. Step 4: Simplify right side
    3,943,734.78x = 11,607,990,206,928.12
  5. Step 5: Solve for x
    x = 11,607,990,206,928.12/3,943,734.78
  6. Step 6: Final answer
    x = 2,943,400.32

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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.