Home / 2,571.47-3,871.25-1,754.91

Finding the Fourth Proportional to 2,571.47, 3,871.25 and 1,754.91

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Solution

The fourth proportional to 2,571.47, 3,871.25 and 1,754.91 is: 2,641.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.47 : 3,871.25 = 1,754.91 : x
  2. Step 2: Convert to fraction form
    2,571.47/3,871.25 = 1,754.91/x
  3. Step 3: Cross multiply
    2,571.47x = 3,871.25 × 1,754.91
  4. Step 4: Simplify right side
    2,571.47x = 6,793,686.56
  5. Step 5: Solve for x
    x = 6,793,686.56/2,571.47
  6. Step 6: Final answer
    x = 2,641.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.