Home / 5,081.44-7,611.20-3,430.66

Finding the Fourth Proportional to 5,081.44, 7,611.20 and 3,430.66

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Solution

The fourth proportional to 5,081.44, 7,611.20 and 3,430.66 is: 5,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.44 : 7,611.20 = 3,430.66 : x
  2. Step 2: Convert to fraction form
    5,081.44/7,611.20 = 3,430.66/x
  3. Step 3: Cross multiply
    5,081.44x = 7,611.20 × 3,430.66
  4. Step 4: Simplify right side
    5,081.44x = 26,111,439.39
  5. Step 5: Solve for x
    x = 26,111,439.39/5,081.44
  6. Step 6: Final answer
    x = 5,138.59

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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.