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Finding the Third Proportional to 869.63 and 2,152.13

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Solution

The third proportional to 869.63 and 2,152.13 is: 5,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    869.63 : 2,152.13 = 2,152.13 : x
  2. Step 2: Convert to fraction form
    869.63/2,152.13 = 2,152.13/x
  3. Step 3: Cross multiply
    869.63x = 2,152.13 × 2,152.13
  4. Step 4: Simplify right side
    869.63x = 4,631,642.02
  5. Step 5: Solve for x
    x = 4,631,642.02/869.63
  6. Step 6: Final answer
    x = 5,326.02

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.