Home / 6,221.58-8,585.76-3,388.90

Finding the Fourth Proportional to 6,221.58, 8,585.76 and 3,388.90

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Solution

The fourth proportional to 6,221.58, 8,585.76 and 3,388.90 is: 4,676.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.58 : 8,585.76 = 3,388.90 : x
  2. Step 2: Convert to fraction form
    6,221.58/8,585.76 = 3,388.90/x
  3. Step 3: Cross multiply
    6,221.58x = 8,585.76 × 3,388.90
  4. Step 4: Simplify right side
    6,221.58x = 29,096,282.06
  5. Step 5: Solve for x
    x = 29,096,282.06/6,221.58
  6. Step 6: Final answer
    x = 4,676.67

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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.