Home / 1,211.96-1,815.54-950.74

Finding the Fourth Proportional to 1,211.96, 1,815.54 and 950.74

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Solution

The fourth proportional to 1,211.96, 1,815.54 and 950.74 is: 1,424.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.96 : 1,815.54 = 950.74 : x
  2. Step 2: Convert to fraction form
    1,211.96/1,815.54 = 950.74/x
  3. Step 3: Cross multiply
    1,211.96x = 1,815.54 × 950.74
  4. Step 4: Simplify right side
    1,211.96x = 1,726,092.67
  5. Step 5: Solve for x
    x = 1,726,092.67/1,211.96
  6. Step 6: Final answer
    x = 1,424.22

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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.