Home / 2,001.05-2,761.39-1,161.90

Finding the Fourth Proportional to 2,001.05, 2,761.39 and 1,161.90

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Solution

The fourth proportional to 2,001.05, 2,761.39 and 1,161.90 is: 1,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.05 : 2,761.39 = 1,161.90 : x
  2. Step 2: Convert to fraction form
    2,001.05/2,761.39 = 1,161.90/x
  3. Step 3: Cross multiply
    2,001.05x = 2,761.39 × 1,161.90
  4. Step 4: Simplify right side
    2,001.05x = 3,208,459.04
  5. Step 5: Solve for x
    x = 3,208,459.04/2,001.05
  6. Step 6: Final answer
    x = 1,603.39

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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.