Home / 7,707.25-11,561.40-2,709.02

Finding the Fourth Proportional to 7,707.25, 11,561.40 and 2,709.02

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Solution

The fourth proportional to 7,707.25, 11,561.40 and 2,709.02 is: 4,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.25 : 11,561.40 = 2,709.02 : x
  2. Step 2: Convert to fraction form
    7,707.25/11,561.40 = 2,709.02/x
  3. Step 3: Cross multiply
    7,707.25x = 11,561.40 × 2,709.02
  4. Step 4: Simplify right side
    7,707.25x = 31,320,063.83
  5. Step 5: Solve for x
    x = 31,320,063.83/7,707.25
  6. Step 6: Final answer
    x = 4,063.71

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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.