Home / 1,209.31-1,811.87-950.96

Finding the Fourth Proportional to 1,209.31, 1,811.87 and 950.96

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Solution

The fourth proportional to 1,209.31, 1,811.87 and 950.96 is: 1,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209.31 : 1,811.87 = 950.96 : x
  2. Step 2: Convert to fraction form
    1,209.31/1,811.87 = 950.96/x
  3. Step 3: Cross multiply
    1,209.31x = 1,811.87 × 950.96
  4. Step 4: Simplify right side
    1,209.31x = 1,723,011.14
  5. Step 5: Solve for x
    x = 1,723,011.14/1,209.31
  6. Step 6: Final answer
    x = 1,424.79

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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.