Home / 3,147.96-4,720.12-1,296.98

Finding the Fourth Proportional to 3,147.96, 4,720.12 and 1,296.98

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Solution

The fourth proportional to 3,147.96, 4,720.12 and 1,296.98 is: 1,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.96 : 4,720.12 = 1,296.98 : x
  2. Step 2: Convert to fraction form
    3,147.96/4,720.12 = 1,296.98/x
  3. Step 3: Cross multiply
    3,147.96x = 4,720.12 × 1,296.98
  4. Step 4: Simplify right side
    3,147.96x = 6,121,901.24
  5. Step 5: Solve for x
    x = 6,121,901.24/3,147.96
  6. Step 6: Final answer
    x = 1,944.72

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.