Home / 2,571.62-3,548.85-1,392.71

Finding the Fourth Proportional to 2,571.62, 3,548.85 and 1,392.71

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Solution

The fourth proportional to 2,571.62, 3,548.85 and 1,392.71 is: 1,921.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.62 : 3,548.85 = 1,392.71 : x
  2. Step 2: Convert to fraction form
    2,571.62/3,548.85 = 1,392.71/x
  3. Step 3: Cross multiply
    2,571.62x = 3,548.85 × 1,392.71
  4. Step 4: Simplify right side
    2,571.62x = 4,942,495.92
  5. Step 5: Solve for x
    x = 4,942,495.92/2,571.62
  6. Step 6: Final answer
    x = 1,921.94

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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.