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Finding the Third Proportional to 4.29 and 5.57

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Solution

The third proportional to 4.29 and 5.57 is: 7.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.29 : 5.57 = 5.57 : x
  2. Step 2: Convert to fraction form
    4.29/5.57 = 5.57/x
  3. Step 3: Cross multiply
    4.29x = 5.57 × 5.57
  4. Step 4: Simplify right side
    4.29x = 31.03
  5. Step 5: Solve for x
    x = 31.03/4.29
  6. Step 6: Final answer
    x = 7.24

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.