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Finding the Fourth Proportional to 3,888.62, 5,366.14 and 2,295.78

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Solution

The fourth proportional to 3,888.62, 5,366.14 and 2,295.78 is: 3,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.62 : 5,366.14 = 2,295.78 : x
  2. Step 2: Convert to fraction form
    3,888.62/5,366.14 = 2,295.78/x
  3. Step 3: Cross multiply
    3,888.62x = 5,366.14 × 2,295.78
  4. Step 4: Simplify right side
    3,888.62x = 12,319,475.45
  5. Step 5: Solve for x
    x = 12,319,475.45/3,888.62
  6. Step 6: Final answer
    x = 3,168.09

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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.