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Finding the Fourth Proportional to 1,782.38, 2,673.97 and 549.90

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Solution

The fourth proportional to 1,782.38, 2,673.97 and 549.90 is: 824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.38 : 2,673.97 = 549.90 : x
  2. Step 2: Convert to fraction form
    1,782.38/2,673.97 = 549.90/x
  3. Step 3: Cross multiply
    1,782.38x = 2,673.97 × 549.90
  4. Step 4: Simplify right side
    1,782.38x = 1,470,414.73
  5. Step 5: Solve for x
    x = 1,470,414.73/1,782.38
  6. Step 6: Final answer
    x = 824.97

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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.