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Finding the Fourth Proportional to 1,762.10, 2,644.08 and 1,279.14

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Solution

The fourth proportional to 1,762.10, 2,644.08 and 1,279.14 is: 1,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762.10 : 2,644.08 = 1,279.14 : x
  2. Step 2: Convert to fraction form
    1,762.10/2,644.08 = 1,279.14/x
  3. Step 3: Cross multiply
    1,762.10x = 2,644.08 × 1,279.14
  4. Step 4: Simplify right side
    1,762.10x = 3,382,148.49
  5. Step 5: Solve for x
    x = 3,382,148.49/1,762.10
  6. Step 6: Final answer
    x = 1,919.39

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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.