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Finding the Fourth Proportional to 2,601.42, 3,901.26 and 751.92

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Solution

The fourth proportional to 2,601.42, 3,901.26 and 751.92 is: 1,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.42 : 3,901.26 = 751.92 : x
  2. Step 2: Convert to fraction form
    2,601.42/3,901.26 = 751.92/x
  3. Step 3: Cross multiply
    2,601.42x = 3,901.26 × 751.92
  4. Step 4: Simplify right side
    2,601.42x = 2,933,435.42
  5. Step 5: Solve for x
    x = 2,933,435.42/2,601.42
  6. Step 6: Final answer
    x = 1,127.63

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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.