Home / 2,961.07-4,438.53-1,318.39

Finding the Fourth Proportional to 2,961.07, 4,438.53 and 1,318.39

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Solution

The fourth proportional to 2,961.07, 4,438.53 and 1,318.39 is: 1,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.07 : 4,438.53 = 1,318.39 : x
  2. Step 2: Convert to fraction form
    2,961.07/4,438.53 = 1,318.39/x
  3. Step 3: Cross multiply
    2,961.07x = 4,438.53 × 1,318.39
  4. Step 4: Simplify right side
    2,961.07x = 5,851,713.57
  5. Step 5: Solve for x
    x = 5,851,713.57/2,961.07
  6. Step 6: Final answer
    x = 1,976.22

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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.