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Finding the Third Proportional to 4,470 and 5,358

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Solution

The third proportional to 4,470 and 5,358 is: 6,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,470 : 5,358 = 5,358 : x
  2. Step 2: Convert to fraction form
    4,470/5,358 = 5,358/x
  3. Step 3: Cross multiply
    4,470x = 5,358 × 5,358
  4. Step 4: Simplify right side
    4,470x = 28,708,164
  5. Step 5: Solve for x
    x = 28,708,164/4,470
  6. Step 6: Final answer
    x = 6,422.41

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.