Home / 2,571.66-3,548.88-1,392.70

Finding the Fourth Proportional to 2,571.66, 3,548.88 and 1,392.70

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Solution

The fourth proportional to 2,571.66, 3,548.88 and 1,392.70 is: 1,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.66 : 3,548.88 = 1,392.70 : x
  2. Step 2: Convert to fraction form
    2,571.66/3,548.88 = 1,392.70/x
  3. Step 3: Cross multiply
    2,571.66x = 3,548.88 × 1,392.70
  4. Step 4: Simplify right side
    2,571.66x = 4,942,525.18
  5. Step 5: Solve for x
    x = 4,942,525.18/2,571.66
  6. Step 6: Final answer
    x = 1,921.92

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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.