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Finding the Fourth Proportional to 5,343.78, 8,016.54 and 1,646.01

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Solution

The fourth proportional to 5,343.78, 8,016.54 and 1,646.01 is: 2,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.78 : 8,016.54 = 1,646.01 : x
  2. Step 2: Convert to fraction form
    5,343.78/8,016.54 = 1,646.01/x
  3. Step 3: Cross multiply
    5,343.78x = 8,016.54 × 1,646.01
  4. Step 4: Simplify right side
    5,343.78x = 13,195,305.01
  5. Step 5: Solve for x
    x = 13,195,305.01/5,343.78
  6. Step 6: Final answer
    x = 2,469.28

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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.