Home / 3,212.43-4,433.16-1,815.18

Finding the Fourth Proportional to 3,212.43, 4,433.16 and 1,815.18

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Solution

The fourth proportional to 3,212.43, 4,433.16 and 1,815.18 is: 2,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.43 : 4,433.16 = 1,815.18 : x
  2. Step 2: Convert to fraction form
    3,212.43/4,433.16 = 1,815.18/x
  3. Step 3: Cross multiply
    3,212.43x = 4,433.16 × 1,815.18
  4. Step 4: Simplify right side
    3,212.43x = 8,046,983.37
  5. Step 5: Solve for x
    x = 8,046,983.37/3,212.43
  6. Step 6: Final answer
    x = 2,504.95

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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.