Home / 7,183.19-10,774.97-1,989.11

Finding the Fourth Proportional to 7,183.19, 10,774.97 and 1,989.11

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Solution

The fourth proportional to 7,183.19, 10,774.97 and 1,989.11 is: 2,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.19 : 10,774.97 = 1,989.11 : x
  2. Step 2: Convert to fraction form
    7,183.19/10,774.97 = 1,989.11/x
  3. Step 3: Cross multiply
    7,183.19x = 10,774.97 × 1,989.11
  4. Step 4: Simplify right side
    7,183.19x = 21,432,625.03
  5. Step 5: Solve for x
    x = 21,432,625.03/7,183.19
  6. Step 6: Final answer
    x = 2,983.72

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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.