Home / 5,458.24-8,188.10-2,171.68

Finding the Fourth Proportional to 5,458.24, 8,188.10 and 2,171.68

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Solution

The fourth proportional to 5,458.24, 8,188.10 and 2,171.68 is: 3,257.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.24 : 8,188.10 = 2,171.68 : x
  2. Step 2: Convert to fraction form
    5,458.24/8,188.10 = 2,171.68/x
  3. Step 3: Cross multiply
    5,458.24x = 8,188.10 × 2,171.68
  4. Step 4: Simplify right side
    5,458.24x = 17,781,933.01
  5. Step 5: Solve for x
    x = 17,781,933.01/5,458.24
  6. Step 6: Final answer
    x = 3,257.81

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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.