Home / 3,874.27-5,350.85-2,620.51

Finding the Fourth Proportional to 3,874.27, 5,350.85 and 2,620.51

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Solution

The fourth proportional to 3,874.27, 5,350.85 and 2,620.51 is: 3,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.27 : 5,350.85 = 2,620.51 : x
  2. Step 2: Convert to fraction form
    3,874.27/5,350.85 = 2,620.51/x
  3. Step 3: Cross multiply
    3,874.27x = 5,350.85 × 2,620.51
  4. Step 4: Simplify right side
    3,874.27x = 14,021,955.93
  5. Step 5: Solve for x
    x = 14,021,955.93/3,874.27
  6. Step 6: Final answer
    x = 3,619.25

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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.