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Finding the Third Proportional to 991.88 and 1,573.13

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Solution

The third proportional to 991.88 and 1,573.13 is: 2,494.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    991.88 : 1,573.13 = 1,573.13 : x
  2. Step 2: Convert to fraction form
    991.88/1,573.13 = 1,573.13/x
  3. Step 3: Cross multiply
    991.88x = 1,573.13 × 1,573.13
  4. Step 4: Simplify right side
    991.88x = 2,474,722.27
  5. Step 5: Solve for x
    x = 2,474,722.27/991.88
  6. Step 6: Final answer
    x = 2,494.99

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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.