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Finding the Fourth Proportional to 2,808.85, 3,876.48 and 1,614

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Solution

The fourth proportional to 2,808.85, 3,876.48 and 1,614 is: 2,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.85 : 3,876.48 = 1,614 : x
  2. Step 2: Convert to fraction form
    2,808.85/3,876.48 = 1,614/x
  3. Step 3: Cross multiply
    2,808.85x = 3,876.48 × 1,614
  4. Step 4: Simplify right side
    2,808.85x = 6,256,638.72
  5. Step 5: Solve for x
    x = 6,256,638.72/2,808.85
  6. Step 6: Final answer
    x = 2,227.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.