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Finding the Fourth Proportional to 4,999.31, 7,499.40 and 1,301.54

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Solution

The fourth proportional to 4,999.31, 7,499.40 and 1,301.54 is: 1,952.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.31 : 7,499.40 = 1,301.54 : x
  2. Step 2: Convert to fraction form
    4,999.31/7,499.40 = 1,301.54/x
  3. Step 3: Cross multiply
    4,999.31x = 7,499.40 × 1,301.54
  4. Step 4: Simplify right side
    4,999.31x = 9,760,768.88
  5. Step 5: Solve for x
    x = 9,760,768.88/4,999.31
  6. Step 6: Final answer
    x = 1,952.42

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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.