Home / 1,786.20-2,462.04-1,288.14

Finding the Fourth Proportional to 1,786.20, 2,462.04 and 1,288.14

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Solution

The fourth proportional to 1,786.20, 2,462.04 and 1,288.14 is: 1,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.20 : 2,462.04 = 1,288.14 : x
  2. Step 2: Convert to fraction form
    1,786.20/2,462.04 = 1,288.14/x
  3. Step 3: Cross multiply
    1,786.20x = 2,462.04 × 1,288.14
  4. Step 4: Simplify right side
    1,786.20x = 3,171,452.21
  5. Step 5: Solve for x
    x = 3,171,452.21/1,786.20
  6. Step 6: Final answer
    x = 1,775.53

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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.