Home / 2,772.37-3,827.67-2,141.80

Finding the Fourth Proportional to 2,772.37, 3,827.67 and 2,141.80

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Solution

The fourth proportional to 2,772.37, 3,827.67 and 2,141.80 is: 2,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.37 : 3,827.67 = 2,141.80 : x
  2. Step 2: Convert to fraction form
    2,772.37/3,827.67 = 2,141.80/x
  3. Step 3: Cross multiply
    2,772.37x = 3,827.67 × 2,141.80
  4. Step 4: Simplify right side
    2,772.37x = 8,198,103.61
  5. Step 5: Solve for x
    x = 8,198,103.61/2,772.37
  6. Step 6: Final answer
    x = 2,957.07

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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.