Home / 3,217.56-4,440.96-1,821.12

Finding the Fourth Proportional to 3,217.56, 4,440.96 and 1,821.12

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Solution

The fourth proportional to 3,217.56, 4,440.96 and 1,821.12 is: 2,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.56 : 4,440.96 = 1,821.12 : x
  2. Step 2: Convert to fraction form
    3,217.56/4,440.96 = 1,821.12/x
  3. Step 3: Cross multiply
    3,217.56x = 4,440.96 × 1,821.12
  4. Step 4: Simplify right side
    3,217.56x = 8,087,521.08
  5. Step 5: Solve for x
    x = 8,087,521.08/3,217.56
  6. Step 6: Final answer
    x = 2,513.56

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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.