Home / 1,452.24-2,004.08-862.79

Finding the Fourth Proportional to 1,452.24, 2,004.08 and 862.79

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Solution

The fourth proportional to 1,452.24, 2,004.08 and 862.79 is: 1,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.24 : 2,004.08 = 862.79 : x
  2. Step 2: Convert to fraction form
    1,452.24/2,004.08 = 862.79/x
  3. Step 3: Cross multiply
    1,452.24x = 2,004.08 × 862.79
  4. Step 4: Simplify right side
    1,452.24x = 1,729,085.85
  5. Step 5: Solve for x
    x = 1,729,085.85/1,452.24
  6. Step 6: Final answer
    x = 1,190.63

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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.