Home / 5,419.29-8,122.66-2,491.45

Finding the Fourth Proportional to 5,419.29, 8,122.66 and 2,491.45

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Solution

The fourth proportional to 5,419.29, 8,122.66 and 2,491.45 is: 3,734.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.29 : 8,122.66 = 2,491.45 : x
  2. Step 2: Convert to fraction form
    5,419.29/8,122.66 = 2,491.45/x
  3. Step 3: Cross multiply
    5,419.29x = 8,122.66 × 2,491.45
  4. Step 4: Simplify right side
    5,419.29x = 20,237,201.26
  5. Step 5: Solve for x
    x = 20,237,201.26/5,419.29
  6. Step 6: Final answer
    x = 3,734.29

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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.