Home / 6,227.58-8,589.21-3,989.67

Finding the Fourth Proportional to 6,227.58, 8,589.21 and 3,989.67

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Solution

The fourth proportional to 6,227.58, 8,589.21 and 3,989.67 is: 5,502.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,227.58 : 8,589.21 = 3,989.67 : x
  2. Step 2: Convert to fraction form
    6,227.58/8,589.21 = 3,989.67/x
  3. Step 3: Cross multiply
    6,227.58x = 8,589.21 × 3,989.67
  4. Step 4: Simplify right side
    6,227.58x = 34,268,113.46
  5. Step 5: Solve for x
    x = 34,268,113.46/6,227.58
  6. Step 6: Final answer
    x = 5,502.64

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Double scale
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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.