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Finding the Fourth Proportional to 2,447.76, 3,672.02 and 803.94

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Solution

The fourth proportional to 2,447.76, 3,672.02 and 803.94 is: 1,206.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.76 : 3,672.02 = 803.94 : x
  2. Step 2: Convert to fraction form
    2,447.76/3,672.02 = 803.94/x
  3. Step 3: Cross multiply
    2,447.76x = 3,672.02 × 803.94
  4. Step 4: Simplify right side
    2,447.76x = 2,952,083.76
  5. Step 5: Solve for x
    x = 2,952,083.76/2,447.76
  6. Step 6: Final answer
    x = 1,206.03

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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.