Home / 3,950.55-5,451.75-2,272.28

Finding the Fourth Proportional to 3,950.55, 5,451.75 and 2,272.28

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Solution

The fourth proportional to 3,950.55, 5,451.75 and 2,272.28 is: 3,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.55 : 5,451.75 = 2,272.28 : x
  2. Step 2: Convert to fraction form
    3,950.55/5,451.75 = 2,272.28/x
  3. Step 3: Cross multiply
    3,950.55x = 5,451.75 × 2,272.28
  4. Step 4: Simplify right side
    3,950.55x = 12,387,875.23
  5. Step 5: Solve for x
    x = 12,387,875.23/3,950.55
  6. Step 6: Final answer
    x = 3,135.73

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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.