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Finding the Third Proportional to 4,875 and 7,758

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Solution

The third proportional to 4,875 and 7,758 is: 12,345.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875 : 7,758 = 7,758 : x
  2. Step 2: Convert to fraction form
    4,875/7,758 = 7,758/x
  3. Step 3: Cross multiply
    4,875x = 7,758 × 7,758
  4. Step 4: Simplify right side
    4,875x = 60,186,564
  5. Step 5: Solve for x
    x = 60,186,564/4,875
  6. Step 6: Final answer
    x = 12,345.96

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.