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Finding the Fourth Proportional to 3,895.52, 5,373.82 and 2,636.62

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Solution

The fourth proportional to 3,895.52, 5,373.82 and 2,636.62 is: 3,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.52 : 5,373.82 = 2,636.62 : x
  2. Step 2: Convert to fraction form
    3,895.52/5,373.82 = 2,636.62/x
  3. Step 3: Cross multiply
    3,895.52x = 5,373.82 × 2,636.62
  4. Step 4: Simplify right side
    3,895.52x = 14,168,721.29
  5. Step 5: Solve for x
    x = 14,168,721.29/3,895.52
  6. Step 6: Final answer
    x = 3,637.18

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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.