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Finding the Third Proportional to 5,090 and 6,897

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Solution

The third proportional to 5,090 and 6,897 is: 9,345.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090 : 6,897 = 6,897 : x
  2. Step 2: Convert to fraction form
    5,090/6,897 = 6,897/x
  3. Step 3: Cross multiply
    5,090x = 6,897 × 6,897
  4. Step 4: Simplify right side
    5,090x = 47,568,609
  5. Step 5: Solve for x
    x = 47,568,609/5,090
  6. Step 6: Final answer
    x = 9,345.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.