Home / 2,165,881.39-2,987,977.87-1,305,963.92

Finding the Fourth Proportional to 2,165,881.39, 2,987,977.87 and 1,305,963.92

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Solution

The fourth proportional to 2,165,881.39, 2,987,977.87 and 1,305,963.92 is: 1,801,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,881.39 : 2,987,977.87 = 1,305,963.92 : x
  2. Step 2: Convert to fraction form
    2,165,881.39/2,987,977.87 = 1,305,963.92/x
  3. Step 3: Cross multiply
    2,165,881.39x = 2,987,977.87 × 1,305,963.92
  4. Step 4: Simplify right side
    2,165,881.39x = 3,902,191,291,978.45
  5. Step 5: Solve for x
    x = 3,902,191,291,978.45/2,165,881.39
  6. Step 6: Final answer
    x = 1,801,664.35

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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.