Home / 5,619.45-8,428.96-1,723.75

Finding the Fourth Proportional to 5,619.45, 8,428.96 and 1,723.75

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Solution

The fourth proportional to 5,619.45, 8,428.96 and 1,723.75 is: 2,585.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.45 : 8,428.96 = 1,723.75 : x
  2. Step 2: Convert to fraction form
    5,619.45/8,428.96 = 1,723.75/x
  3. Step 3: Cross multiply
    5,619.45x = 8,428.96 × 1,723.75
  4. Step 4: Simplify right side
    5,619.45x = 14,529,419.80
  5. Step 5: Solve for x
    x = 14,529,419.80/5,619.45
  6. Step 6: Final answer
    x = 2,585.56

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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.