Home / 6,579.87-9,869.83-1,899.90

Finding the Fourth Proportional to 6,579.87, 9,869.83 and 1,899.90

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Solution

The fourth proportional to 6,579.87, 9,869.83 and 1,899.90 is: 2,849.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,579.87 : 9,869.83 = 1,899.90 : x
  2. Step 2: Convert to fraction form
    6,579.87/9,869.83 = 1,899.90/x
  3. Step 3: Cross multiply
    6,579.87x = 9,869.83 × 1,899.90
  4. Step 4: Simplify right side
    6,579.87x = 18,751,685.27
  5. Step 5: Solve for x
    x = 18,751,685.27/6,579.87
  6. Step 6: Final answer
    x = 2,849.86

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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.