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Finding the Fourth Proportional to 3,291.48, 4,939.04 and 1,343.54

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Solution

The fourth proportional to 3,291.48, 4,939.04 and 1,343.54 is: 2,016.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.48 : 4,939.04 = 1,343.54 : x
  2. Step 2: Convert to fraction form
    3,291.48/4,939.04 = 1,343.54/x
  3. Step 3: Cross multiply
    3,291.48x = 4,939.04 × 1,343.54
  4. Step 4: Simplify right side
    3,291.48x = 6,635,813.51
  5. Step 5: Solve for x
    x = 6,635,813.51/3,291.48
  6. Step 6: Final answer
    x = 2,016.06

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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.