Home / 2,136.24-2,949.48-1,339.92

Finding the Fourth Proportional to 2,136.24, 2,949.48 and 1,339.92

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Solution

The fourth proportional to 2,136.24, 2,949.48 and 1,339.92 is: 1,850.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.24 : 2,949.48 = 1,339.92 : x
  2. Step 2: Convert to fraction form
    2,136.24/2,949.48 = 1,339.92/x
  3. Step 3: Cross multiply
    2,136.24x = 2,949.48 × 1,339.92
  4. Step 4: Simplify right side
    2,136.24x = 3,952,067.24
  5. Step 5: Solve for x
    x = 3,952,067.24/2,136.24
  6. Step 6: Final answer
    x = 1,850.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.