Home / 2,227.31-3,339.99-839.67

Finding the Fourth Proportional to 2,227.31, 3,339.99 and 839.67

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Solution

The fourth proportional to 2,227.31, 3,339.99 and 839.67 is: 1,259.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227.31 : 3,339.99 = 839.67 : x
  2. Step 2: Convert to fraction form
    2,227.31/3,339.99 = 839.67/x
  3. Step 3: Cross multiply
    2,227.31x = 3,339.99 × 839.67
  4. Step 4: Simplify right side
    2,227.31x = 2,804,489.40
  5. Step 5: Solve for x
    x = 2,804,489.40/2,227.31
  6. Step 6: Final answer
    x = 1,259.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.