Home / 3,950.70-5,451.39-2,272.19

Finding the Fourth Proportional to 3,950.70, 5,451.39 and 2,272.19

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Solution

The fourth proportional to 3,950.70, 5,451.39 and 2,272.19 is: 3,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.70 : 5,451.39 = 2,272.19 : x
  2. Step 2: Convert to fraction form
    3,950.70/5,451.39 = 2,272.19/x
  3. Step 3: Cross multiply
    3,950.70x = 5,451.39 × 2,272.19
  4. Step 4: Simplify right side
    3,950.70x = 12,386,566.59
  5. Step 5: Solve for x
    x = 12,386,566.59/3,950.70
  6. Step 6: Final answer
    x = 3,135.28

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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.