Home / 1,640.05-2,262.60-1,001.66

Finding the Fourth Proportional to 1,640.05, 2,262.60 and 1,001.66

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Solution

The fourth proportional to 1,640.05, 2,262.60 and 1,001.66 is: 1,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.05 : 2,262.60 = 1,001.66 : x
  2. Step 2: Convert to fraction form
    1,640.05/2,262.60 = 1,001.66/x
  3. Step 3: Cross multiply
    1,640.05x = 2,262.60 × 1,001.66
  4. Step 4: Simplify right side
    1,640.05x = 2,266,355.92
  5. Step 5: Solve for x
    x = 2,266,355.92/1,640.05
  6. Step 6: Final answer
    x = 1,381.88

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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.