Home / 2,887.76-4,331.03-1,243.87

Finding the Fourth Proportional to 2,887.76, 4,331.03 and 1,243.87

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Solution

The fourth proportional to 2,887.76, 4,331.03 and 1,243.87 is: 1,865.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.76 : 4,331.03 = 1,243.87 : x
  2. Step 2: Convert to fraction form
    2,887.76/4,331.03 = 1,243.87/x
  3. Step 3: Cross multiply
    2,887.76x = 4,331.03 × 1,243.87
  4. Step 4: Simplify right side
    2,887.76x = 5,387,238.29
  5. Step 5: Solve for x
    x = 5,387,238.29/2,887.76
  6. Step 6: Final answer
    x = 1,865.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.