Home / 3,228.39-4,454.69-1,812.15

Finding the Fourth Proportional to 3,228.39, 4,454.69 and 1,812.15

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Solution

The fourth proportional to 3,228.39, 4,454.69 and 1,812.15 is: 2,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.39 : 4,454.69 = 1,812.15 : x
  2. Step 2: Convert to fraction form
    3,228.39/4,454.69 = 1,812.15/x
  3. Step 3: Cross multiply
    3,228.39x = 4,454.69 × 1,812.15
  4. Step 4: Simplify right side
    3,228.39x = 8,072,557.42
  5. Step 5: Solve for x
    x = 8,072,557.42/3,228.39
  6. Step 6: Final answer
    x = 2,500.49

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1.5x scale

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.