Home / 5,620.20-7,755.13-3,382.62

Finding the Fourth Proportional to 5,620.20, 7,755.13 and 3,382.62

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Solution

The fourth proportional to 5,620.20, 7,755.13 and 3,382.62 is: 4,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.20 : 7,755.13 = 3,382.62 : x
  2. Step 2: Convert to fraction form
    5,620.20/7,755.13 = 3,382.62/x
  3. Step 3: Cross multiply
    5,620.20x = 7,755.13 × 3,382.62
  4. Step 4: Simplify right side
    5,620.20x = 26,232,657.84
  5. Step 5: Solve for x
    x = 26,232,657.84/5,620.20
  6. Step 6: Final answer
    x = 4,667.57

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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.