Home / 7,540.37-11,309.55-1,994.12

Finding the Fourth Proportional to 7,540.37, 11,309.55 and 1,994.12

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Solution

The fourth proportional to 7,540.37, 11,309.55 and 1,994.12 is: 2,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.37 : 11,309.55 = 1,994.12 : x
  2. Step 2: Convert to fraction form
    7,540.37/11,309.55 = 1,994.12/x
  3. Step 3: Cross multiply
    7,540.37x = 11,309.55 × 1,994.12
  4. Step 4: Simplify right side
    7,540.37x = 22,552,599.85
  5. Step 5: Solve for x
    x = 22,552,599.85/7,540.37
  6. Step 6: Final answer
    x = 2,990.91

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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.