Home / 2,571.58-3,548.79-1,392.64

Finding the Fourth Proportional to 2,571.58, 3,548.79 and 1,392.64

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Solution

The fourth proportional to 2,571.58, 3,548.79 and 1,392.64 is: 1,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.58 : 3,548.79 = 1,392.64 : x
  2. Step 2: Convert to fraction form
    2,571.58/3,548.79 = 1,392.64/x
  3. Step 3: Cross multiply
    2,571.58x = 3,548.79 × 1,392.64
  4. Step 4: Simplify right side
    2,571.58x = 4,942,186.91
  5. Step 5: Solve for x
    x = 4,942,186.91/2,571.58
  6. Step 6: Final answer
    x = 1,921.85

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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.