Home / 3,351.34-5,027.40-1,272.90

Finding the Fourth Proportional to 3,351.34, 5,027.40 and 1,272.90

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Solution

The fourth proportional to 3,351.34, 5,027.40 and 1,272.90 is: 1,909.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.34 : 5,027.40 = 1,272.90 : x
  2. Step 2: Convert to fraction form
    3,351.34/5,027.40 = 1,272.90/x
  3. Step 3: Cross multiply
    3,351.34x = 5,027.40 × 1,272.90
  4. Step 4: Simplify right side
    3,351.34x = 6,399,377.46
  5. Step 5: Solve for x
    x = 6,399,377.46/3,351.34
  6. Step 6: Final answer
    x = 1,909.50

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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.