Home / 5,499.78-8,246.70-1,989.24

Finding the Fourth Proportional to 5,499.78, 8,246.70 and 1,989.24

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Solution

The fourth proportional to 5,499.78, 8,246.70 and 1,989.24 is: 2,982.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,499.78 : 8,246.70 = 1,989.24 : x
  2. Step 2: Convert to fraction form
    5,499.78/8,246.70 = 1,989.24/x
  3. Step 3: Cross multiply
    5,499.78x = 8,246.70 × 1,989.24
  4. Step 4: Simplify right side
    5,499.78x = 16,404,665.51
  5. Step 5: Solve for x
    x = 16,404,665.51/5,499.78
  6. Step 6: Final answer
    x = 2,982.79

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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.