Home / 2,247.06-3,371.30-687.36

Finding the Fourth Proportional to 2,247.06, 3,371.30 and 687.36

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Solution

The fourth proportional to 2,247.06, 3,371.30 and 687.36 is: 1,031.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.06 : 3,371.30 = 687.36 : x
  2. Step 2: Convert to fraction form
    2,247.06/3,371.30 = 687.36/x
  3. Step 3: Cross multiply
    2,247.06x = 3,371.30 × 687.36
  4. Step 4: Simplify right side
    2,247.06x = 2,317,296.77
  5. Step 5: Solve for x
    x = 2,317,296.77/2,247.06
  6. Step 6: Final answer
    x = 1,031.26

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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.