Home / 2,134.19-3,196.95-1,207.79

Finding the Fourth Proportional to 2,134.19, 3,196.95 and 1,207.79

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Solution

The fourth proportional to 2,134.19, 3,196.95 and 1,207.79 is: 1,809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.19 : 3,196.95 = 1,207.79 : x
  2. Step 2: Convert to fraction form
    2,134.19/3,196.95 = 1,207.79/x
  3. Step 3: Cross multiply
    2,134.19x = 3,196.95 × 1,207.79
  4. Step 4: Simplify right side
    2,134.19x = 3,861,260.49
  5. Step 5: Solve for x
    x = 3,861,260.49/2,134.19
  6. Step 6: Final answer
    x = 1,809.24

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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.