Home / 6,113.82-9,169.36-2,990.71

Finding the Fourth Proportional to 6,113.82, 9,169.36 and 2,990.71

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Solution

The fourth proportional to 6,113.82, 9,169.36 and 2,990.71 is: 4,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.82 : 9,169.36 = 2,990.71 : x
  2. Step 2: Convert to fraction form
    6,113.82/9,169.36 = 2,990.71/x
  3. Step 3: Cross multiply
    6,113.82x = 9,169.36 × 2,990.71
  4. Step 4: Simplify right side
    6,113.82x = 27,422,900.63
  5. Step 5: Solve for x
    x = 27,422,900.63/6,113.82
  6. Step 6: Final answer
    x = 4,485.39

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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.