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Finding the Fourth Proportional to 5.63, 8.47 and 3.95

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Solution

The fourth proportional to 5.63, 8.47 and 3.95 is: 5.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.63 : 8.47 = 3.95 : x
  2. Step 2: Convert to fraction form
    5.63/8.47 = 3.95/x
  3. Step 3: Cross multiply
    5.63x = 8.47 × 3.95
  4. Step 4: Simplify right side
    5.63x = 33.48
  5. Step 5: Solve for x
    x = 33.48/5.63
  6. Step 6: Final answer
    x = 5.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.