Home / 3,174,010.38-4,381,474.78-2,142,915

Finding the Fourth Proportional to 3,174,010.38, 4,381,474.78 and 2,142,915

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Solution

The fourth proportional to 3,174,010.38, 4,381,474.78 and 2,142,915 is: 2,958,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174,010.38 : 4,381,474.78 = 2,142,915 : x
  2. Step 2: Convert to fraction form
    3,174,010.38/4,381,474.78 = 2,142,915/x
  3. Step 3: Cross multiply
    3,174,010.38x = 4,381,474.78 × 2,142,915
  4. Step 4: Simplify right side
    3,174,010.38x = 9,389,128,028,183.70
  5. Step 5: Solve for x
    x = 9,389,128,028,183.70/3,174,010.38
  6. Step 6: Final answer
    x = 2,958,127.70

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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.