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Finding the Fourth Proportional to 2,939.44, 4,407.88 and 2,288.56

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Solution

The fourth proportional to 2,939.44, 4,407.88 and 2,288.56 is: 3,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.44 : 4,407.88 = 2,288.56 : x
  2. Step 2: Convert to fraction form
    2,939.44/4,407.88 = 2,288.56/x
  3. Step 3: Cross multiply
    2,939.44x = 4,407.88 × 2,288.56
  4. Step 4: Simplify right side
    2,939.44x = 10,087,697.85
  5. Step 5: Solve for x
    x = 10,087,697.85/2,939.44
  6. Step 6: Final answer
    x = 3,431.84

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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.