Home / 2,571.85-3,549.18-1,392.92

Finding the Fourth Proportional to 2,571.85, 3,549.18 and 1,392.92

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Solution

The fourth proportional to 2,571.85, 3,549.18 and 1,392.92 is: 1,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.85 : 3,549.18 = 1,392.92 : x
  2. Step 2: Convert to fraction form
    2,571.85/3,549.18 = 1,392.92/x
  3. Step 3: Cross multiply
    2,571.85x = 3,549.18 × 1,392.92
  4. Step 4: Simplify right side
    2,571.85x = 4,943,706.06
  5. Step 5: Solve for x
    x = 4,943,706.06/2,571.85
  6. Step 6: Final answer
    x = 1,922.24

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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.