Home / 1,429.46-2,141.38-1,274.66

Finding the Fourth Proportional to 1,429.46, 2,141.38 and 1,274.66

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Solution

The fourth proportional to 1,429.46, 2,141.38 and 1,274.66 is: 1,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.46 : 2,141.38 = 1,274.66 : x
  2. Step 2: Convert to fraction form
    1,429.46/2,141.38 = 1,274.66/x
  3. Step 3: Cross multiply
    1,429.46x = 2,141.38 × 1,274.66
  4. Step 4: Simplify right side
    1,429.46x = 2,729,531.43
  5. Step 5: Solve for x
    x = 2,729,531.43/1,429.46
  6. Step 6: Final answer
    x = 1,909.48

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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.