Home / 2,153.37-3,227.97-691.52

Finding the Fourth Proportional to 2,153.37, 3,227.97 and 691.52

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Solution

The fourth proportional to 2,153.37, 3,227.97 and 691.52 is: 1,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.37 : 3,227.97 = 691.52 : x
  2. Step 2: Convert to fraction form
    2,153.37/3,227.97 = 691.52/x
  3. Step 3: Cross multiply
    2,153.37x = 3,227.97 × 691.52
  4. Step 4: Simplify right side
    2,153.37x = 2,232,213.88
  5. Step 5: Solve for x
    x = 2,232,213.88/2,153.37
  6. Step 6: Final answer
    x = 1,036.61

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1.5x scale

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.