Home / 1,380.66-2,059.73-1,136.44

Finding the Fourth Proportional to 1,380.66, 2,059.73 and 1,136.44

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Solution

The fourth proportional to 1,380.66, 2,059.73 and 1,136.44 is: 1,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380.66 : 2,059.73 = 1,136.44 : x
  2. Step 2: Convert to fraction form
    1,380.66/2,059.73 = 1,136.44/x
  3. Step 3: Cross multiply
    1,380.66x = 2,059.73 × 1,136.44
  4. Step 4: Simplify right side
    1,380.66x = 2,340,759.56
  5. Step 5: Solve for x
    x = 2,340,759.56/1,380.66
  6. Step 6: Final answer
    x = 1,695.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.