Home / 3,953.68-5,455.09-2,251.80

Finding the Fourth Proportional to 3,953.68, 5,455.09 and 2,251.80

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Solution

The fourth proportional to 3,953.68, 5,455.09 and 2,251.80 is: 3,106.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.68 : 5,455.09 = 2,251.80 : x
  2. Step 2: Convert to fraction form
    3,953.68/5,455.09 = 2,251.80/x
  3. Step 3: Cross multiply
    3,953.68x = 5,455.09 × 2,251.80
  4. Step 4: Simplify right side
    3,953.68x = 12,283,771.66
  5. Step 5: Solve for x
    x = 12,283,771.66/3,953.68
  6. Step 6: Final answer
    x = 3,106.92

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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.