Home / 1,426.74-2,136.62-1,178.43

Finding the Fourth Proportional to 1,426.74, 2,136.62 and 1,178.43

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Solution

The fourth proportional to 1,426.74, 2,136.62 and 1,178.43 is: 1,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.74 : 2,136.62 = 1,178.43 : x
  2. Step 2: Convert to fraction form
    1,426.74/2,136.62 = 1,178.43/x
  3. Step 3: Cross multiply
    1,426.74x = 2,136.62 × 1,178.43
  4. Step 4: Simplify right side
    1,426.74x = 2,517,847.62
  5. Step 5: Solve for x
    x = 2,517,847.62/1,426.74
  6. Step 6: Final answer
    x = 1,764.76

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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.