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Finding the Fourth Proportional to 2,652.37, 3,979.19 and 803.38

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Solution

The fourth proportional to 2,652.37, 3,979.19 and 803.38 is: 1,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.37 : 3,979.19 = 803.38 : x
  2. Step 2: Convert to fraction form
    2,652.37/3,979.19 = 803.38/x
  3. Step 3: Cross multiply
    2,652.37x = 3,979.19 × 803.38
  4. Step 4: Simplify right side
    2,652.37x = 3,196,801.66
  5. Step 5: Solve for x
    x = 3,196,801.66/2,652.37
  6. Step 6: Final answer
    x = 1,205.26

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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.