Home / 2,144.49-2,959.38-1,212.99

Finding the Fourth Proportional to 2,144.49, 2,959.38 and 1,212.99

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Solution

The fourth proportional to 2,144.49, 2,959.38 and 1,212.99 is: 1,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.49 : 2,959.38 = 1,212.99 : x
  2. Step 2: Convert to fraction form
    2,144.49/2,959.38 = 1,212.99/x
  3. Step 3: Cross multiply
    2,144.49x = 2,959.38 × 1,212.99
  4. Step 4: Simplify right side
    2,144.49x = 3,589,698.35
  5. Step 5: Solve for x
    x = 3,589,698.35/2,144.49
  6. Step 6: Final answer
    x = 1,673.92

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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.