Home / 6,221.70-8,585.82-3,427.20

Finding the Fourth Proportional to 6,221.70, 8,585.82 and 3,427.20

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Solution

The fourth proportional to 6,221.70, 8,585.82 and 3,427.20 is: 4,729.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.70 : 8,585.82 = 3,427.20 : x
  2. Step 2: Convert to fraction form
    6,221.70/8,585.82 = 3,427.20/x
  3. Step 3: Cross multiply
    6,221.70x = 8,585.82 × 3,427.20
  4. Step 4: Simplify right side
    6,221.70x = 29,425,322.30
  5. Step 5: Solve for x
    x = 29,425,322.30/6,221.70
  6. Step 6: Final answer
    x = 4,729.47

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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.