Home / 5,619.82-7,755.24-3,102.18

Finding the Fourth Proportional to 5,619.82, 7,755.24 and 3,102.18

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Solution

The fourth proportional to 5,619.82, 7,755.24 and 3,102.18 is: 4,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.82 : 7,755.24 = 3,102.18 : x
  2. Step 2: Convert to fraction form
    5,619.82/7,755.24 = 3,102.18/x
  3. Step 3: Cross multiply
    5,619.82x = 7,755.24 × 3,102.18
  4. Step 4: Simplify right side
    5,619.82x = 24,058,150.42
  5. Step 5: Solve for x
    x = 24,058,150.42/5,619.82
  6. Step 6: Final answer
    x = 4,280.95

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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.