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Finding the Third Proportional to 4.70 and 5.71

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Solution

The third proportional to 4.70 and 5.71 is: 6.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.70 : 5.71 = 5.71 : x
  2. Step 2: Convert to fraction form
    4.70/5.71 = 5.71/x
  3. Step 3: Cross multiply
    4.70x = 5.71 × 5.71
  4. Step 4: Simplify right side
    4.70x = 32.57
  5. Step 5: Solve for x
    x = 32.57/4.70
  6. Step 6: Final answer
    x = 6.94

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.