Home / 1,452.72-2,180.11-867.36

Finding the Fourth Proportional to 1,452.72, 2,180.11 and 867.36

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Solution

The fourth proportional to 1,452.72, 2,180.11 and 867.36 is: 1,301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.72 : 2,180.11 = 867.36 : x
  2. Step 2: Convert to fraction form
    1,452.72/2,180.11 = 867.36/x
  3. Step 3: Cross multiply
    1,452.72x = 2,180.11 × 867.36
  4. Step 4: Simplify right side
    1,452.72x = 1,890,940.21
  5. Step 5: Solve for x
    x = 1,890,940.21/1,452.72
  6. Step 6: Final answer
    x = 1,301.65

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1.5x scale

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.