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Finding the Third Proportional to 1,862 and 4,389.50

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Solution

The third proportional to 1,862 and 4,389.50 is: 10,347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862 : 4,389.50 = 4,389.50 : x
  2. Step 2: Convert to fraction form
    1,862/4,389.50 = 4,389.50/x
  3. Step 3: Cross multiply
    1,862x = 4,389.50 × 4,389.50
  4. Step 4: Simplify right side
    1,862x = 19,267,710.25
  5. Step 5: Solve for x
    x = 19,267,710.25/1,862
  6. Step 6: Final answer
    x = 10,347.86

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.