Home / 5,811.12-8,021.16-3,925.44

Finding the Fourth Proportional to 5,811.12, 8,021.16 and 3,925.44

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Solution

The fourth proportional to 5,811.12, 8,021.16 and 3,925.44 is: 5,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.12 : 8,021.16 = 3,925.44 : x
  2. Step 2: Convert to fraction form
    5,811.12/8,021.16 = 3,925.44/x
  3. Step 3: Cross multiply
    5,811.12x = 8,021.16 × 3,925.44
  4. Step 4: Simplify right side
    5,811.12x = 31,486,582.31
  5. Step 5: Solve for x
    x = 31,486,582.31/5,811.12
  6. Step 6: Final answer
    x = 5,418.33

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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.