Home / 3,660.64-5,491.20-1,351.36

Finding the Fourth Proportional to 3,660.64, 5,491.20 and 1,351.36

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Solution

The fourth proportional to 3,660.64, 5,491.20 and 1,351.36 is: 2,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.64 : 5,491.20 = 1,351.36 : x
  2. Step 2: Convert to fraction form
    3,660.64/5,491.20 = 1,351.36/x
  3. Step 3: Cross multiply
    3,660.64x = 5,491.20 × 1,351.36
  4. Step 4: Simplify right side
    3,660.64x = 7,420,588.03
  5. Step 5: Solve for x
    x = 7,420,588.03/3,660.64
  6. Step 6: Final answer
    x = 2,027.13

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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.