Home / 2,186.89-3,281.30-800.43

Finding the Fourth Proportional to 2,186.89, 3,281.30 and 800.43

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Solution

The fourth proportional to 2,186.89, 3,281.30 and 800.43 is: 1,201.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.89 : 3,281.30 = 800.43 : x
  2. Step 2: Convert to fraction form
    2,186.89/3,281.30 = 800.43/x
  3. Step 3: Cross multiply
    2,186.89x = 3,281.30 × 800.43
  4. Step 4: Simplify right side
    2,186.89x = 2,626,460.18
  5. Step 5: Solve for x
    x = 2,626,460.18/2,186.89
  6. Step 6: Final answer
    x = 1,201.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.