Home / 1,452.23-2,174.95-720.19

Finding the Fourth Proportional to 1,452.23, 2,174.95 and 720.19

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Solution

The fourth proportional to 1,452.23, 2,174.95 and 720.19 is: 1,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.23 : 2,174.95 = 720.19 : x
  2. Step 2: Convert to fraction form
    1,452.23/2,174.95 = 720.19/x
  3. Step 3: Cross multiply
    1,452.23x = 2,174.95 × 720.19
  4. Step 4: Simplify right side
    1,452.23x = 1,566,380.86
  5. Step 5: Solve for x
    x = 1,566,380.86/1,452.23
  6. Step 6: Final answer
    x = 1,078.60

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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.