Home / 6,109.44-8,431.12-3,591.60

Finding the Fourth Proportional to 6,109.44, 8,431.12 and 3,591.60

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Solution

The fourth proportional to 6,109.44, 8,431.12 and 3,591.60 is: 4,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,109.44 : 8,431.12 = 3,591.60 : x
  2. Step 2: Convert to fraction form
    6,109.44/8,431.12 = 3,591.60/x
  3. Step 3: Cross multiply
    6,109.44x = 8,431.12 × 3,591.60
  4. Step 4: Simplify right side
    6,109.44x = 30,281,210.59
  5. Step 5: Solve for x
    x = 30,281,210.59/6,109.44
  6. Step 6: Final answer
    x = 4,956.46

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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.