Home / 7,805.72-11,708.52-2,611.56

Finding the Fourth Proportional to 7,805.72, 11,708.52 and 2,611.56

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Solution

The fourth proportional to 7,805.72, 11,708.52 and 2,611.56 is: 3,917.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.72 : 11,708.52 = 2,611.56 : x
  2. Step 2: Convert to fraction form
    7,805.72/11,708.52 = 2,611.56/x
  3. Step 3: Cross multiply
    7,805.72x = 11,708.52 × 2,611.56
  4. Step 4: Simplify right side
    7,805.72x = 30,577,502.49
  5. Step 5: Solve for x
    x = 30,577,502.49/7,805.72
  6. Step 6: Final answer
    x = 3,917.32

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1.5x scale

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.