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Finding the Fourth Proportional to 3,228.75, 4,845.15 and 2,499.75

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Solution

The fourth proportional to 3,228.75, 4,845.15 and 2,499.75 is: 3,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.75 : 4,845.15 = 2,499.75 : x
  2. Step 2: Convert to fraction form
    3,228.75/4,845.15 = 2,499.75/x
  3. Step 3: Cross multiply
    3,228.75x = 4,845.15 × 2,499.75
  4. Step 4: Simplify right side
    3,228.75x = 12,111,663.71
  5. Step 5: Solve for x
    x = 12,111,663.71/3,228.75
  6. Step 6: Final answer
    x = 3,751.19

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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.