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Finding the Third Proportional to 5,347.90 and 7,489.34

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Solution

The third proportional to 5,347.90 and 7,489.34 is: 10,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.90 : 7,489.34 = 7,489.34 : x
  2. Step 2: Convert to fraction form
    5,347.90/7,489.34 = 7,489.34/x
  3. Step 3: Cross multiply
    5,347.90x = 7,489.34 × 7,489.34
  4. Step 4: Simplify right side
    5,347.90x = 56,090,152.78
  5. Step 5: Solve for x
    x = 56,090,152.78/5,347.90
  6. Step 6: Final answer
    x = 10,488.26

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.