Home / 3,216.75-4,442.76-2,166.99

Finding the Fourth Proportional to 3,216.75, 4,442.76 and 2,166.99

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Solution

The fourth proportional to 3,216.75, 4,442.76 and 2,166.99 is: 2,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.75 : 4,442.76 = 2,166.99 : x
  2. Step 2: Convert to fraction form
    3,216.75/4,442.76 = 2,166.99/x
  3. Step 3: Cross multiply
    3,216.75x = 4,442.76 × 2,166.99
  4. Step 4: Simplify right side
    3,216.75x = 9,627,416.49
  5. Step 5: Solve for x
    x = 9,627,416.49/3,216.75
  6. Step 6: Final answer
    x = 2,992.90

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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.