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Finding the Third Proportional to 777.19 and 1,858.13

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Solution

The third proportional to 777.19 and 1,858.13 is: 4,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    777.19 : 1,858.13 = 1,858.13 : x
  2. Step 2: Convert to fraction form
    777.19/1,858.13 = 1,858.13/x
  3. Step 3: Cross multiply
    777.19x = 1,858.13 × 1,858.13
  4. Step 4: Simplify right side
    777.19x = 3,452,628.52
  5. Step 5: Solve for x
    x = 3,452,628.52/777.19
  6. Step 6: Final answer
    x = 4,442.47

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.