Home / 5,456.68-8,186.28-1,993.96

Finding the Fourth Proportional to 5,456.68, 8,186.28 and 1,993.96

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Solution

The fourth proportional to 5,456.68, 8,186.28 and 1,993.96 is: 2,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.68 : 8,186.28 = 1,993.96 : x
  2. Step 2: Convert to fraction form
    5,456.68/8,186.28 = 1,993.96/x
  3. Step 3: Cross multiply
    5,456.68x = 8,186.28 × 1,993.96
  4. Step 4: Simplify right side
    5,456.68x = 16,323,114.87
  5. Step 5: Solve for x
    x = 16,323,114.87/5,456.68
  6. Step 6: Final answer
    x = 2,991.40

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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.