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Finding the Fourth Proportional to 1,876.90, 2,814.54 and 1,348.78

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Solution

The fourth proportional to 1,876.90, 2,814.54 and 1,348.78 is: 2,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.90 : 2,814.54 = 1,348.78 : x
  2. Step 2: Convert to fraction form
    1,876.90/2,814.54 = 1,348.78/x
  3. Step 3: Cross multiply
    1,876.90x = 2,814.54 × 1,348.78
  4. Step 4: Simplify right side
    1,876.90x = 3,796,195.26
  5. Step 5: Solve for x
    x = 3,796,195.26/1,876.90
  6. Step 6: Final answer
    x = 2,022.59

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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.