Home / 6,107.96-8,427.56-4,221.20

Finding the Fourth Proportional to 6,107.96, 8,427.56 and 4,221.20

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Solution

The fourth proportional to 6,107.96, 8,427.56 and 4,221.20 is: 5,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.96 : 8,427.56 = 4,221.20 : x
  2. Step 2: Convert to fraction form
    6,107.96/8,427.56 = 4,221.20/x
  3. Step 3: Cross multiply
    6,107.96x = 8,427.56 × 4,221.20
  4. Step 4: Simplify right side
    6,107.96x = 35,574,416.27
  5. Step 5: Solve for x
    x = 35,574,416.27/6,107.96
  6. Step 6: Final answer
    x = 5,824.27

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Half scale
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Double scale
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Similar ratio
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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.