Home / 5,619.11-8,430.68-2,412.05

Finding the Fourth Proportional to 5,619.11, 8,430.68 and 2,412.05

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Solution

The fourth proportional to 5,619.11, 8,430.68 and 2,412.05 is: 3,618.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.11 : 8,430.68 = 2,412.05 : x
  2. Step 2: Convert to fraction form
    5,619.11/8,430.68 = 2,412.05/x
  3. Step 3: Cross multiply
    5,619.11x = 8,430.68 × 2,412.05
  4. Step 4: Simplify right side
    5,619.11x = 20,335,185.57
  5. Step 5: Solve for x
    x = 20,335,185.57/5,619.11
  6. Step 6: Final answer
    x = 3,618.94

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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.