Home / 5,647.68-8,471.40-1,949.79

Finding the Fourth Proportional to 5,647.68, 8,471.40 and 1,949.79

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Solution

The fourth proportional to 5,647.68, 8,471.40 and 1,949.79 is: 2,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.68 : 8,471.40 = 1,949.79 : x
  2. Step 2: Convert to fraction form
    5,647.68/8,471.40 = 1,949.79/x
  3. Step 3: Cross multiply
    5,647.68x = 8,471.40 × 1,949.79
  4. Step 4: Simplify right side
    5,647.68x = 16,517,451.01
  5. Step 5: Solve for x
    x = 16,517,451.01/5,647.68
  6. Step 6: Final answer
    x = 2,924.64

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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.