Home / 1,452.13-2,004.20-862.99

Finding the Fourth Proportional to 1,452.13, 2,004.20 and 862.99

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Solution

The fourth proportional to 1,452.13, 2,004.20 and 862.99 is: 1,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.13 : 2,004.20 = 862.99 : x
  2. Step 2: Convert to fraction form
    1,452.13/2,004.20 = 862.99/x
  3. Step 3: Cross multiply
    1,452.13x = 2,004.20 × 862.99
  4. Step 4: Simplify right side
    1,452.13x = 1,729,604.56
  5. Step 5: Solve for x
    x = 1,729,604.56/1,452.13
  6. Step 6: Final answer
    x = 1,191.08

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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.