Home / 5,456.86-8,185.28-1,993.30

Finding the Fourth Proportional to 5,456.86, 8,185.28 and 1,993.30

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Solution

The fourth proportional to 5,456.86, 8,185.28 and 1,993.30 is: 2,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.86 : 8,185.28 = 1,993.30 : x
  2. Step 2: Convert to fraction form
    5,456.86/8,185.28 = 1,993.30/x
  3. Step 3: Cross multiply
    5,456.86x = 8,185.28 × 1,993.30
  4. Step 4: Simplify right side
    5,456.86x = 16,315,718.62
  5. Step 5: Solve for x
    x = 16,315,718.62/5,456.86
  6. Step 6: Final answer
    x = 2,989.95

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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.