Home / 3,957.88-5,461.39-2,189.24

Finding the Fourth Proportional to 3,957.88, 5,461.39 and 2,189.24

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Solution

The fourth proportional to 3,957.88, 5,461.39 and 2,189.24 is: 3,020.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.88 : 5,461.39 = 2,189.24 : x
  2. Step 2: Convert to fraction form
    3,957.88/5,461.39 = 2,189.24/x
  3. Step 3: Cross multiply
    3,957.88x = 5,461.39 × 2,189.24
  4. Step 4: Simplify right side
    3,957.88x = 11,956,293.44
  5. Step 5: Solve for x
    x = 11,956,293.44/3,957.88
  6. Step 6: Final answer
    x = 3,020.88

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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.