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Finding the Third Proportional to 1,858.57 and 2,988.14

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Solution

The third proportional to 1,858.57 and 2,988.14 is: 4,804.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.57 : 2,988.14 = 2,988.14 : x
  2. Step 2: Convert to fraction form
    1,858.57/2,988.14 = 2,988.14/x
  3. Step 3: Cross multiply
    1,858.57x = 2,988.14 × 2,988.14
  4. Step 4: Simplify right side
    1,858.57x = 8,928,984.39
  5. Step 5: Solve for x
    x = 8,928,984.39/1,858.57
  6. Step 6: Final answer
    x = 4,804.22

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.