Home / 6,222.99-8,589.54-3,990.84

Finding the Fourth Proportional to 6,222.99, 8,589.54 and 3,990.84

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Solution

The fourth proportional to 6,222.99, 8,589.54 and 3,990.84 is: 5,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.99 : 8,589.54 = 3,990.84 : x
  2. Step 2: Convert to fraction form
    6,222.99/8,589.54 = 3,990.84/x
  3. Step 3: Cross multiply
    6,222.99x = 8,589.54 × 3,990.84
  4. Step 4: Simplify right side
    6,222.99x = 34,279,479.81
  5. Step 5: Solve for x
    x = 34,279,479.81/6,222.99
  6. Step 6: Final answer
    x = 5,508.52

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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.