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Finding the Fourth Proportional to 2,672.55, 4,008.74 and 1,801.31

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Solution

The fourth proportional to 2,672.55, 4,008.74 and 1,801.31 is: 2,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.55 : 4,008.74 = 1,801.31 : x
  2. Step 2: Convert to fraction form
    2,672.55/4,008.74 = 1,801.31/x
  3. Step 3: Cross multiply
    2,672.55x = 4,008.74 × 1,801.31
  4. Step 4: Simplify right side
    2,672.55x = 7,220,954.40
  5. Step 5: Solve for x
    x = 7,220,954.40/2,672.55
  6. Step 6: Final answer
    x = 2,701.90

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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.