Home / 3,854.05-5,313.77-3,216.91

Finding the Fourth Proportional to 3,854.05, 5,313.77 and 3,216.91

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Solution

The fourth proportional to 3,854.05, 5,313.77 and 3,216.91 is: 4,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.05 : 5,313.77 = 3,216.91 : x
  2. Step 2: Convert to fraction form
    3,854.05/5,313.77 = 3,216.91/x
  3. Step 3: Cross multiply
    3,854.05x = 5,313.77 × 3,216.91
  4. Step 4: Simplify right side
    3,854.05x = 17,093,919.85
  5. Step 5: Solve for x
    x = 17,093,919.85/3,854.05
  6. Step 6: Final answer
    x = 4,435.31

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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.