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Finding the Fourth Proportional to 3,358.98, 5,037.71 and 1,279.22

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Solution

The fourth proportional to 3,358.98, 5,037.71 and 1,279.22 is: 1,918.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.98 : 5,037.71 = 1,279.22 : x
  2. Step 2: Convert to fraction form
    3,358.98/5,037.71 = 1,279.22/x
  3. Step 3: Cross multiply
    3,358.98x = 5,037.71 × 1,279.22
  4. Step 4: Simplify right side
    3,358.98x = 6,444,307.80
  5. Step 5: Solve for x
    x = 6,444,307.80/3,358.98
  6. Step 6: Final answer
    x = 1,918.53

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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.