Home / 2,121,872.90-2,928,250.64-1,155,067.63

Finding the Fourth Proportional to 2,121,872.90, 2,928,250.64 and 1,155,067.63

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Solution

The fourth proportional to 2,121,872.90, 2,928,250.64 and 1,155,067.63 is: 1,594,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,872.90 : 2,928,250.64 = 1,155,067.63 : x
  2. Step 2: Convert to fraction form
    2,121,872.90/2,928,250.64 = 1,155,067.63/x
  3. Step 3: Cross multiply
    2,121,872.90x = 2,928,250.64 × 1,155,067.63
  4. Step 4: Simplify right side
    2,121,872.90x = 3,382,327,522,357.83
  5. Step 5: Solve for x
    x = 3,382,327,522,357.83/2,121,872.90
  6. Step 6: Final answer
    x = 1,594,029.28

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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.