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Finding the Fourth Proportional to 2,550.34, 3,823.08 and 817.75

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Solution

The fourth proportional to 2,550.34, 3,823.08 and 817.75 is: 1,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,550.34 : 3,823.08 = 817.75 : x
  2. Step 2: Convert to fraction form
    2,550.34/3,823.08 = 817.75/x
  3. Step 3: Cross multiply
    2,550.34x = 3,823.08 × 817.75
  4. Step 4: Simplify right side
    2,550.34x = 3,126,323.67
  5. Step 5: Solve for x
    x = 3,126,323.67/2,550.34
  6. Step 6: Final answer
    x = 1,225.85

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1.5x scale

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.