Home / 7,431.31-11,146.95-2,499.61

Finding the Fourth Proportional to 7,431.31, 11,146.95 and 2,499.61

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Solution

The fourth proportional to 7,431.31, 11,146.95 and 2,499.61 is: 3,749.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.31 : 11,146.95 = 2,499.61 : x
  2. Step 2: Convert to fraction form
    7,431.31/11,146.95 = 2,499.61/x
  3. Step 3: Cross multiply
    7,431.31x = 11,146.95 × 2,499.61
  4. Step 4: Simplify right side
    7,431.31x = 27,863,027.69
  5. Step 5: Solve for x
    x = 27,863,027.69/7,431.31
  6. Step 6: Final answer
    x = 3,749.41

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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.