Home / 3,917,667.78-5,406,381.59-2,198,788.29

Finding the Fourth Proportional to 3,917,667.78, 5,406,381.59 and 2,198,788.29

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Solution

The fourth proportional to 3,917,667.78, 5,406,381.59 and 2,198,788.29 is: 3,034,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917,667.78 : 5,406,381.59 = 2,198,788.29 : x
  2. Step 2: Convert to fraction form
    3,917,667.78/5,406,381.59 = 2,198,788.29/x
  3. Step 3: Cross multiply
    3,917,667.78x = 5,406,381.59 × 2,198,788.29
  4. Step 4: Simplify right side
    3,917,667.78x = 11,887,488,520,369.64
  5. Step 5: Solve for x
    x = 11,887,488,520,369.64/3,917,667.78
  6. Step 6: Final answer
    x = 3,034,327.87

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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.