Home / 2,161,755.67-2,982,918.05-1,231,487.88

Finding the Fourth Proportional to 2,161,755.67, 2,982,918.05 and 1,231,487.88

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Solution

The fourth proportional to 2,161,755.67, 2,982,918.05 and 1,231,487.88 is: 1,699,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,755.67 : 2,982,918.05 = 1,231,487.88 : x
  2. Step 2: Convert to fraction form
    2,161,755.67/2,982,918.05 = 1,231,487.88/x
  3. Step 3: Cross multiply
    2,161,755.67x = 2,982,918.05 × 1,231,487.88
  4. Step 4: Simplify right side
    2,161,755.67x = 3,673,427,421,272.39
  5. Step 5: Solve for x
    x = 3,673,427,421,272.39/2,161,755.67
  6. Step 6: Final answer
    x = 1,699,279.65

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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.