Home / 2,144.24-2,958.84-1,212.08

Finding the Fourth Proportional to 2,144.24, 2,958.84 and 1,212.08

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Solution

The fourth proportional to 2,144.24, 2,958.84 and 1,212.08 is: 1,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.24 : 2,958.84 = 1,212.08 : x
  2. Step 2: Convert to fraction form
    2,144.24/2,958.84 = 1,212.08/x
  3. Step 3: Cross multiply
    2,144.24x = 2,958.84 × 1,212.08
  4. Step 4: Simplify right side
    2,144.24x = 3,586,350.79
  5. Step 5: Solve for x
    x = 3,586,350.79/2,144.24
  6. Step 6: Final answer
    x = 1,672.55

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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.