Home / 1,999.26-2,756.43-1,663.11

Finding the Fourth Proportional to 1,999.26, 2,756.43 and 1,663.11

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Solution

The fourth proportional to 1,999.26, 2,756.43 and 1,663.11 is: 2,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.26 : 2,756.43 = 1,663.11 : x
  2. Step 2: Convert to fraction form
    1,999.26/2,756.43 = 1,663.11/x
  3. Step 3: Cross multiply
    1,999.26x = 2,756.43 × 1,663.11
  4. Step 4: Simplify right side
    1,999.26x = 4,584,246.30
  5. Step 5: Solve for x
    x = 4,584,246.30/1,999.26
  6. Step 6: Final answer
    x = 2,292.97

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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.