Home / 5,619.75-7,755.18-3,101.91

Finding the Fourth Proportional to 5,619.75, 7,755.18 and 3,101.91

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Solution

The fourth proportional to 5,619.75, 7,755.18 and 3,101.91 is: 4,280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.75 : 7,755.18 = 3,101.91 : x
  2. Step 2: Convert to fraction form
    5,619.75/7,755.18 = 3,101.91/x
  3. Step 3: Cross multiply
    5,619.75x = 7,755.18 × 3,101.91
  4. Step 4: Simplify right side
    5,619.75x = 24,055,860.22
  5. Step 5: Solve for x
    x = 24,055,860.22/5,619.75
  6. Step 6: Final answer
    x = 4,280.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.