Home / 2,144.24-2,959.08-1,212.76

Finding the Fourth Proportional to 2,144.24, 2,959.08 and 1,212.76

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Solution

The fourth proportional to 2,144.24, 2,959.08 and 1,212.76 is: 1,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.24 : 2,959.08 = 1,212.76 : x
  2. Step 2: Convert to fraction form
    2,144.24/2,959.08 = 1,212.76/x
  3. Step 3: Cross multiply
    2,144.24x = 2,959.08 × 1,212.76
  4. Step 4: Simplify right side
    2,144.24x = 3,588,653.86
  5. Step 5: Solve for x
    x = 3,588,653.86/2,144.24
  6. Step 6: Final answer
    x = 1,673.63

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Half scale
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Double scale
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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.