Home / 7,149.26-10,723.39-2,987.75

Finding the Fourth Proportional to 7,149.26, 10,723.39 and 2,987.75

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Solution

The fourth proportional to 7,149.26, 10,723.39 and 2,987.75 is: 4,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.26 : 10,723.39 = 2,987.75 : x
  2. Step 2: Convert to fraction form
    7,149.26/10,723.39 = 2,987.75/x
  3. Step 3: Cross multiply
    7,149.26x = 10,723.39 × 2,987.75
  4. Step 4: Simplify right side
    7,149.26x = 32,038,827.81
  5. Step 5: Solve for x
    x = 32,038,827.81/7,149.26
  6. Step 6: Final answer
    x = 4,481.42

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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.