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Finding the Fourth Proportional to 2,655.14, 3,655.74 and 2,255.96

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Solution

The fourth proportional to 2,655.14, 3,655.74 and 2,255.96 is: 3,106.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.14 : 3,655.74 = 2,255.96 : x
  2. Step 2: Convert to fraction form
    2,655.14/3,655.74 = 2,255.96/x
  3. Step 3: Cross multiply
    2,655.14x = 3,655.74 × 2,255.96
  4. Step 4: Simplify right side
    2,655.14x = 8,247,184.93
  5. Step 5: Solve for x
    x = 8,247,184.93/2,655.14
  6. Step 6: Final answer
    x = 3,106.13

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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.