Home / 7,239.86-10,859.60-2,309.80

Finding the Fourth Proportional to 7,239.86, 10,859.60 and 2,309.80

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Solution

The fourth proportional to 7,239.86, 10,859.60 and 2,309.80 is: 3,464.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.86 : 10,859.60 = 2,309.80 : x
  2. Step 2: Convert to fraction form
    7,239.86/10,859.60 = 2,309.80/x
  3. Step 3: Cross multiply
    7,239.86x = 10,859.60 × 2,309.80
  4. Step 4: Simplify right side
    7,239.86x = 25,083,504.08
  5. Step 5: Solve for x
    x = 25,083,504.08/7,239.86
  6. Step 6: Final answer
    x = 3,464.64

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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.