Home / 2,247.40-3,371.64-786.72

Finding the Fourth Proportional to 2,247.40, 3,371.64 and 786.72

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Solution

The fourth proportional to 2,247.40, 3,371.64 and 786.72 is: 1,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.40 : 3,371.64 = 786.72 : x
  2. Step 2: Convert to fraction form
    2,247.40/3,371.64 = 786.72/x
  3. Step 3: Cross multiply
    2,247.40x = 3,371.64 × 786.72
  4. Step 4: Simplify right side
    2,247.40x = 2,652,536.62
  5. Step 5: Solve for x
    x = 2,652,536.62/2,247.40
  6. Step 6: Final answer
    x = 1,180.27

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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.