Home / 3,750.96-5,618.88-3,140.76

Finding the Fourth Proportional to 3,750.96, 5,618.88 and 3,140.76

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Solution

The fourth proportional to 3,750.96, 5,618.88 and 3,140.76 is: 4,704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.96 : 5,618.88 = 3,140.76 : x
  2. Step 2: Convert to fraction form
    3,750.96/5,618.88 = 3,140.76/x
  3. Step 3: Cross multiply
    3,750.96x = 5,618.88 × 3,140.76
  4. Step 4: Simplify right side
    3,750.96x = 17,647,553.55
  5. Step 5: Solve for x
    x = 17,647,553.55/3,750.96
  6. Step 6: Final answer
    x = 4,704.81

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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.