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Finding the Third Proportional to 783.75 and 1,702.56

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Solution

The third proportional to 783.75 and 1,702.56 is: 3,698.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    783.75 : 1,702.56 = 1,702.56 : x
  2. Step 2: Convert to fraction form
    783.75/1,702.56 = 1,702.56/x
  3. Step 3: Cross multiply
    783.75x = 1,702.56 × 1,702.56
  4. Step 4: Simplify right side
    783.75x = 2,898,719.07
  5. Step 5: Solve for x
    x = 2,898,719.07/783.75
  6. Step 6: Final answer
    x = 3,698.53

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.