Home / 3,925.30-5,412.84-2,731.64

Finding the Fourth Proportional to 3,925.30, 5,412.84 and 2,731.64

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Solution

The fourth proportional to 3,925.30, 5,412.84 and 2,731.64 is: 3,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.30 : 5,412.84 = 2,731.64 : x
  2. Step 2: Convert to fraction form
    3,925.30/5,412.84 = 2,731.64/x
  3. Step 3: Cross multiply
    3,925.30x = 5,412.84 × 2,731.64
  4. Step 4: Simplify right side
    3,925.30x = 14,785,930.26
  5. Step 5: Solve for x
    x = 14,785,930.26/3,925.30
  6. Step 6: Final answer
    x = 3,766.83

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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.