Home / 5,188.83-7,158.27-3,198.66

Finding the Fourth Proportional to 5,188.83, 7,158.27 and 3,198.66

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Solution

The fourth proportional to 5,188.83, 7,158.27 and 3,198.66 is: 4,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.83 : 7,158.27 = 3,198.66 : x
  2. Step 2: Convert to fraction form
    5,188.83/7,158.27 = 3,198.66/x
  3. Step 3: Cross multiply
    5,188.83x = 7,158.27 × 3,198.66
  4. Step 4: Simplify right side
    5,188.83x = 22,896,871.92
  5. Step 5: Solve for x
    x = 22,896,871.92/5,188.83
  6. Step 6: Final answer
    x = 4,412.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.