Home / 2,571.54-3,548.70-1,392.59

Finding the Fourth Proportional to 2,571.54, 3,548.70 and 1,392.59

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Solution

The fourth proportional to 2,571.54, 3,548.70 and 1,392.59 is: 1,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.54 : 3,548.70 = 1,392.59 : x
  2. Step 2: Convert to fraction form
    2,571.54/3,548.70 = 1,392.59/x
  3. Step 3: Cross multiply
    2,571.54x = 3,548.70 × 1,392.59
  4. Step 4: Simplify right side
    2,571.54x = 4,941,884.13
  5. Step 5: Solve for x
    x = 4,941,884.13/2,571.54
  6. Step 6: Final answer
    x = 1,921.76

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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.