Home / 3,171,913.72-4,377,186-1,721,578.02

Finding the Fourth Proportional to 3,171,913.72, 4,377,186 and 1,721,578.02

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Solution

The fourth proportional to 3,171,913.72, 4,377,186 and 1,721,578.02 is: 2,375,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,913.72 : 4,377,186 = 1,721,578.02 : x
  2. Step 2: Convert to fraction form
    3,171,913.72/4,377,186 = 1,721,578.02/x
  3. Step 3: Cross multiply
    3,171,913.72x = 4,377,186 × 1,721,578.02
  4. Step 4: Simplify right side
    3,171,913.72x = 7,535,667,207,051.72
  5. Step 5: Solve for x
    x = 7,535,667,207,051.72/3,171,913.72
  6. Step 6: Final answer
    x = 2,375,747.85

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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.