Home / 1,958.33-2,701.40-1,211.81

Finding the Fourth Proportional to 1,958.33, 2,701.40 and 1,211.81

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Solution

The fourth proportional to 1,958.33, 2,701.40 and 1,211.81 is: 1,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.33 : 2,701.40 = 1,211.81 : x
  2. Step 2: Convert to fraction form
    1,958.33/2,701.40 = 1,211.81/x
  3. Step 3: Cross multiply
    1,958.33x = 2,701.40 × 1,211.81
  4. Step 4: Simplify right side
    1,958.33x = 3,273,585.98
  5. Step 5: Solve for x
    x = 3,273,585.98/1,958.33
  6. Step 6: Final answer
    x = 1,671.62

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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.