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Finding the Fourth Proportional to 3,775.30, 5,655.44 and 2,949.72

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Solution

The fourth proportional to 3,775.30, 5,655.44 and 2,949.72 is: 4,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.30 : 5,655.44 = 2,949.72 : x
  2. Step 2: Convert to fraction form
    3,775.30/5,655.44 = 2,949.72/x
  3. Step 3: Cross multiply
    3,775.30x = 5,655.44 × 2,949.72
  4. Step 4: Simplify right side
    3,775.30x = 16,681,964.48
  5. Step 5: Solve for x
    x = 16,681,964.48/3,775.30
  6. Step 6: Final answer
    x = 4,418.71

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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.