Home / 6,408.15-9,613.61-1,965.81

Finding the Fourth Proportional to 6,408.15, 9,613.61 and 1,965.81

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Solution

The fourth proportional to 6,408.15, 9,613.61 and 1,965.81 is: 2,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.15 : 9,613.61 = 1,965.81 : x
  2. Step 2: Convert to fraction form
    6,408.15/9,613.61 = 1,965.81/x
  3. Step 3: Cross multiply
    6,408.15x = 9,613.61 × 1,965.81
  4. Step 4: Simplify right side
    6,408.15x = 18,898,530.67
  5. Step 5: Solve for x
    x = 18,898,530.67/6,408.15
  6. Step 6: Final answer
    x = 2,949.14

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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.