Home / 5,143.12-7,708.83-3,196.66

Finding the Fourth Proportional to 5,143.12, 7,708.83 and 3,196.66

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Solution

The fourth proportional to 5,143.12, 7,708.83 and 3,196.66 is: 4,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.12 : 7,708.83 = 3,196.66 : x
  2. Step 2: Convert to fraction form
    5,143.12/7,708.83 = 3,196.66/x
  3. Step 3: Cross multiply
    5,143.12x = 7,708.83 × 3,196.66
  4. Step 4: Simplify right side
    5,143.12x = 24,642,508.51
  5. Step 5: Solve for x
    x = 24,642,508.51/5,143.12
  6. Step 6: Final answer
    x = 4,791.35

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1.5x scale

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.