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Finding the Fourth Proportional to 1,452.94, 2,004.93 and 823.49

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Solution

The fourth proportional to 1,452.94, 2,004.93 and 823.49 is: 1,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.94 : 2,004.93 = 823.49 : x
  2. Step 2: Convert to fraction form
    1,452.94/2,004.93 = 823.49/x
  3. Step 3: Cross multiply
    1,452.94x = 2,004.93 × 823.49
  4. Step 4: Simplify right side
    1,452.94x = 1,651,040.62
  5. Step 5: Solve for x
    x = 1,651,040.62/1,452.94
  6. Step 6: Final answer
    x = 1,136.35

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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.