Home / 1,225.48-1,839.53-495.53

Finding the Fourth Proportional to 1,225.48, 1,839.53 and 495.53

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Solution

The fourth proportional to 1,225.48, 1,839.53 and 495.53 is: 743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.48 : 1,839.53 = 495.53 : x
  2. Step 2: Convert to fraction form
    1,225.48/1,839.53 = 495.53/x
  3. Step 3: Cross multiply
    1,225.48x = 1,839.53 × 495.53
  4. Step 4: Simplify right side
    1,225.48x = 911,548.14
  5. Step 5: Solve for x
    x = 911,548.14/1,225.48
  6. Step 6: Final answer
    x = 743.83

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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.