Home / 7,778.79-11,670.97-3,334.59

Finding the Fourth Proportional to 7,778.79, 11,670.97 and 3,334.59

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Solution

The fourth proportional to 7,778.79, 11,670.97 and 3,334.59 is: 5,003.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.79 : 11,670.97 = 3,334.59 : x
  2. Step 2: Convert to fraction form
    7,778.79/11,670.97 = 3,334.59/x
  3. Step 3: Cross multiply
    7,778.79x = 11,670.97 × 3,334.59
  4. Step 4: Simplify right side
    7,778.79x = 38,917,891.52
  5. Step 5: Solve for x
    x = 38,917,891.52/7,778.79
  6. Step 6: Final answer
    x = 5,003.08

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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.