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Finding the Fourth Proportional to 2,732.81, 3,772.40 and 1,896.26

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Solution

The fourth proportional to 2,732.81, 3,772.40 and 1,896.26 is: 2,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,732.81 : 3,772.40 = 1,896.26 : x
  2. Step 2: Convert to fraction form
    2,732.81/3,772.40 = 1,896.26/x
  3. Step 3: Cross multiply
    2,732.81x = 3,772.40 × 1,896.26
  4. Step 4: Simplify right side
    2,732.81x = 7,153,422.88
  5. Step 5: Solve for x
    x = 7,153,422.88/2,732.81
  6. Step 6: Final answer
    x = 2,617.61

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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.