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Finding the Fourth Proportional to 2,967.81, 4,451.72 and 1,813.29

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Solution

The fourth proportional to 2,967.81, 4,451.72 and 1,813.29 is: 2,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,967.81 : 4,451.72 = 1,813.29 : x
  2. Step 2: Convert to fraction form
    2,967.81/4,451.72 = 1,813.29/x
  3. Step 3: Cross multiply
    2,967.81x = 4,451.72 × 1,813.29
  4. Step 4: Simplify right side
    2,967.81x = 8,072,250.29
  5. Step 5: Solve for x
    x = 8,072,250.29/2,967.81
  6. Step 6: Final answer
    x = 2,719.94

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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.