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Finding the Fourth Proportional to 2,753.71, 3,805.58 and 2,255.56

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Solution

The fourth proportional to 2,753.71, 3,805.58 and 2,255.56 is: 3,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.71 : 3,805.58 = 2,255.56 : x
  2. Step 2: Convert to fraction form
    2,753.71/3,805.58 = 2,255.56/x
  3. Step 3: Cross multiply
    2,753.71x = 3,805.58 × 2,255.56
  4. Step 4: Simplify right side
    2,753.71x = 8,583,683.72
  5. Step 5: Solve for x
    x = 8,583,683.72/2,753.71
  6. Step 6: Final answer
    x = 3,117.14

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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.