Home / 2,571.92-3,549.26-1,392.99

Finding the Fourth Proportional to 2,571.92, 3,549.26 and 1,392.99

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Solution

The fourth proportional to 2,571.92, 3,549.26 and 1,392.99 is: 1,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.92 : 3,549.26 = 1,392.99 : x
  2. Step 2: Convert to fraction form
    2,571.92/3,549.26 = 1,392.99/x
  3. Step 3: Cross multiply
    2,571.92x = 3,549.26 × 1,392.99
  4. Step 4: Simplify right side
    2,571.92x = 4,944,076.72
  5. Step 5: Solve for x
    x = 4,944,076.72/2,571.92
  6. Step 6: Final answer
    x = 1,922.33

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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.