Home / 3,217.36-4,440.28-1,958.12

Finding the Fourth Proportional to 3,217.36, 4,440.28 and 1,958.12

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Solution

The fourth proportional to 3,217.36, 4,440.28 and 1,958.12 is: 2,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.36 : 4,440.28 = 1,958.12 : x
  2. Step 2: Convert to fraction form
    3,217.36/4,440.28 = 1,958.12/x
  3. Step 3: Cross multiply
    3,217.36x = 4,440.28 × 1,958.12
  4. Step 4: Simplify right side
    3,217.36x = 8,694,601.07
  5. Step 5: Solve for x
    x = 8,694,601.07/3,217.36
  6. Step 6: Final answer
    x = 2,702.40

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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.