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Finding the Fourth Proportional to 2,955.26, 4,434.90 and 1,223.90

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Solution

The fourth proportional to 2,955.26, 4,434.90 and 1,223.90 is: 1,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.26 : 4,434.90 = 1,223.90 : x
  2. Step 2: Convert to fraction form
    2,955.26/4,434.90 = 1,223.90/x
  3. Step 3: Cross multiply
    2,955.26x = 4,434.90 × 1,223.90
  4. Step 4: Simplify right side
    2,955.26x = 5,427,874.11
  5. Step 5: Solve for x
    x = 5,427,874.11/2,955.26
  6. Step 6: Final answer
    x = 1,836.68

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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.