Home / 2,172.49-3,259.65-1,351.46

Finding the Fourth Proportional to 2,172.49, 3,259.65 and 1,351.46

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Solution

The fourth proportional to 2,172.49, 3,259.65 and 1,351.46 is: 2,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.49 : 3,259.65 = 1,351.46 : x
  2. Step 2: Convert to fraction form
    2,172.49/3,259.65 = 1,351.46/x
  3. Step 3: Cross multiply
    2,172.49x = 3,259.65 × 1,351.46
  4. Step 4: Simplify right side
    2,172.49x = 4,405,286.59
  5. Step 5: Solve for x
    x = 4,405,286.59/2,172.49
  6. Step 6: Final answer
    x = 2,027.76

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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.