Home / 1,352.43-2,025.60-823.90

Finding the Fourth Proportional to 1,352.43, 2,025.60 and 823.90

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Solution

The fourth proportional to 1,352.43, 2,025.60 and 823.90 is: 1,233.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.43 : 2,025.60 = 823.90 : x
  2. Step 2: Convert to fraction form
    1,352.43/2,025.60 = 823.90/x
  3. Step 3: Cross multiply
    1,352.43x = 2,025.60 × 823.90
  4. Step 4: Simplify right side
    1,352.43x = 1,668,891.84
  5. Step 5: Solve for x
    x = 1,668,891.84/1,352.43
  6. Step 6: Final answer
    x = 1,233.99

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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.