Home / 3,677.85-5,074.38-2,105.64

Finding the Fourth Proportional to 3,677.85, 5,074.38 and 2,105.64

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Solution

The fourth proportional to 3,677.85, 5,074.38 and 2,105.64 is: 2,905.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.85 : 5,074.38 = 2,105.64 : x
  2. Step 2: Convert to fraction form
    3,677.85/5,074.38 = 2,105.64/x
  3. Step 3: Cross multiply
    3,677.85x = 5,074.38 × 2,105.64
  4. Step 4: Simplify right side
    3,677.85x = 10,684,817.50
  5. Step 5: Solve for x
    x = 10,684,817.50/3,677.85
  6. Step 6: Final answer
    x = 2,905.18

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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.