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Finding the Third Proportional to 975.38 and 2,145.38

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Solution

The third proportional to 975.38 and 2,145.38 is: 4,718.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.38 : 2,145.38 = 2,145.38 : x
  2. Step 2: Convert to fraction form
    975.38/2,145.38 = 2,145.38/x
  3. Step 3: Cross multiply
    975.38x = 2,145.38 × 2,145.38
  4. Step 4: Simplify right side
    975.38x = 4,602,633.89
  5. Step 5: Solve for x
    x = 4,602,633.89/975.38
  6. Step 6: Final answer
    x = 4,718.84

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.