Home / 5,408.29-8,109.33-2,117.53

Finding the Fourth Proportional to 5,408.29, 8,109.33 and 2,117.53

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Solution

The fourth proportional to 5,408.29, 8,109.33 and 2,117.53 is: 3,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.29 : 8,109.33 = 2,117.53 : x
  2. Step 2: Convert to fraction form
    5,408.29/8,109.33 = 2,117.53/x
  3. Step 3: Cross multiply
    5,408.29x = 8,109.33 × 2,117.53
  4. Step 4: Simplify right side
    5,408.29x = 17,171,749.55
  5. Step 5: Solve for x
    x = 17,171,749.55/5,408.29
  6. Step 6: Final answer
    x = 3,175.08

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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.