Home / 3,950.32-5,451.97-3,820.51

Finding the Fourth Proportional to 3,950.32, 5,451.97 and 3,820.51

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Solution

The fourth proportional to 3,950.32, 5,451.97 and 3,820.51 is: 5,272.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.32 : 5,451.97 = 3,820.51 : x
  2. Step 2: Convert to fraction form
    3,950.32/5,451.97 = 3,820.51/x
  3. Step 3: Cross multiply
    3,950.32x = 5,451.97 × 3,820.51
  4. Step 4: Simplify right side
    3,950.32x = 20,829,284.25
  5. Step 5: Solve for x
    x = 20,829,284.25/3,950.32
  6. Step 6: Final answer
    x = 5,272.81

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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.