Home / 5,164.91-7,129.26-3,040.41

Finding the Fourth Proportional to 5,164.91, 7,129.26 and 3,040.41

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Solution

The fourth proportional to 5,164.91, 7,129.26 and 3,040.41 is: 4,196.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.91 : 7,129.26 = 3,040.41 : x
  2. Step 2: Convert to fraction form
    5,164.91/7,129.26 = 3,040.41/x
  3. Step 3: Cross multiply
    5,164.91x = 7,129.26 × 3,040.41
  4. Step 4: Simplify right side
    5,164.91x = 21,675,873.40
  5. Step 5: Solve for x
    x = 21,675,873.40/5,164.91
  6. Step 6: Final answer
    x = 4,196.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.