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Finding the Fourth Proportional to 2,715, 4,076.52 and 1,672.01

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Solution

The fourth proportional to 2,715, 4,076.52 and 1,672.01 is: 2,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715 : 4,076.52 = 1,672.01 : x
  2. Step 2: Convert to fraction form
    2,715/4,076.52 = 1,672.01/x
  3. Step 3: Cross multiply
    2,715x = 4,076.52 × 1,672.01
  4. Step 4: Simplify right side
    2,715x = 6,815,982.21
  5. Step 5: Solve for x
    x = 6,815,982.21/2,715
  6. Step 6: Final answer
    x = 2,510.49

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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.