Home / 3,217.88-4,435.50-2,168.12

Finding the Fourth Proportional to 3,217.88, 4,435.50 and 2,168.12

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Solution

The fourth proportional to 3,217.88, 4,435.50 and 2,168.12 is: 2,988.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.88 : 4,435.50 = 2,168.12 : x
  2. Step 2: Convert to fraction form
    3,217.88/4,435.50 = 2,168.12/x
  3. Step 3: Cross multiply
    3,217.88x = 4,435.50 × 2,168.12
  4. Step 4: Simplify right side
    3,217.88x = 9,616,696.26
  5. Step 5: Solve for x
    x = 9,616,696.26/3,217.88
  6. Step 6: Final answer
    x = 2,988.52

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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.