Home / 3,217.05-4,449.31-2,885.36

Finding the Fourth Proportional to 3,217.05, 4,449.31 and 2,885.36

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Solution

The fourth proportional to 3,217.05, 4,449.31 and 2,885.36 is: 3,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.05 : 4,449.31 = 2,885.36 : x
  2. Step 2: Convert to fraction form
    3,217.05/4,449.31 = 2,885.36/x
  3. Step 3: Cross multiply
    3,217.05x = 4,449.31 × 2,885.36
  4. Step 4: Simplify right side
    3,217.05x = 12,837,831.64
  5. Step 5: Solve for x
    x = 12,837,831.64/3,217.05
  6. Step 6: Final answer
    x = 3,990.56

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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.