Home / 2,217.37-3,060.11-1,286.17

Finding the Fourth Proportional to 2,217.37, 3,060.11 and 1,286.17

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Solution

The fourth proportional to 2,217.37, 3,060.11 and 1,286.17 is: 1,774.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.37 : 3,060.11 = 1,286.17 : x
  2. Step 2: Convert to fraction form
    2,217.37/3,060.11 = 1,286.17/x
  3. Step 3: Cross multiply
    2,217.37x = 3,060.11 × 1,286.17
  4. Step 4: Simplify right side
    2,217.37x = 3,935,815.25
  5. Step 5: Solve for x
    x = 3,935,815.25/2,217.37
  6. Step 6: Final answer
    x = 1,774.99

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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.