Home / 3,431.13-5,146.66-965.95

Finding the Fourth Proportional to 3,431.13, 5,146.66 and 965.95

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Solution

The fourth proportional to 3,431.13, 5,146.66 and 965.95 is: 1,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.13 : 5,146.66 = 965.95 : x
  2. Step 2: Convert to fraction form
    3,431.13/5,146.66 = 965.95/x
  3. Step 3: Cross multiply
    3,431.13x = 5,146.66 × 965.95
  4. Step 4: Simplify right side
    3,431.13x = 4,971,416.23
  5. Step 5: Solve for x
    x = 4,971,416.23/3,431.13
  6. Step 6: Final answer
    x = 1,448.92

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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.