Home / 3,755.20-5,631.18-2,890.12

Finding the Fourth Proportional to 3,755.20, 5,631.18 and 2,890.12

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Solution

The fourth proportional to 3,755.20, 5,631.18 and 2,890.12 is: 4,333.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.20 : 5,631.18 = 2,890.12 : x
  2. Step 2: Convert to fraction form
    3,755.20/5,631.18 = 2,890.12/x
  3. Step 3: Cross multiply
    3,755.20x = 5,631.18 × 2,890.12
  4. Step 4: Simplify right side
    3,755.20x = 16,274,785.94
  5. Step 5: Solve for x
    x = 16,274,785.94/3,755.20
  6. Step 6: Final answer
    x = 4,333.93

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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.