Home / 6,221.71-8,585.96-3,427.21

Finding the Fourth Proportional to 6,221.71, 8,585.96 and 3,427.21

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Solution

The fourth proportional to 6,221.71, 8,585.96 and 3,427.21 is: 4,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.71 : 8,585.96 = 3,427.21 : x
  2. Step 2: Convert to fraction form
    6,221.71/8,585.96 = 3,427.21/x
  3. Step 3: Cross multiply
    6,221.71x = 8,585.96 × 3,427.21
  4. Step 4: Simplify right side
    6,221.71x = 29,425,887.97
  5. Step 5: Solve for x
    x = 29,425,887.97/6,221.71
  6. Step 6: Final answer
    x = 4,729.55

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Half scale
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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.