Home / 1,452.48-2,179.20-1,372.80

Finding the Fourth Proportional to 1,452.48, 2,179.20 and 1,372.80

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Solution

The fourth proportional to 1,452.48, 2,179.20 and 1,372.80 is: 2,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.48 : 2,179.20 = 1,372.80 : x
  2. Step 2: Convert to fraction form
    1,452.48/2,179.20 = 1,372.80/x
  3. Step 3: Cross multiply
    1,452.48x = 2,179.20 × 1,372.80
  4. Step 4: Simplify right side
    1,452.48x = 2,991,605.76
  5. Step 5: Solve for x
    x = 2,991,605.76/1,452.48
  6. Step 6: Final answer
    x = 2,059.65

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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.