Home / 3,994.18-5,511.92-2,225.75

Finding the Fourth Proportional to 3,994.18, 5,511.92 and 2,225.75

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Solution

The fourth proportional to 3,994.18, 5,511.92 and 2,225.75 is: 3,071.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.18 : 5,511.92 = 2,225.75 : x
  2. Step 2: Convert to fraction form
    3,994.18/5,511.92 = 2,225.75/x
  3. Step 3: Cross multiply
    3,994.18x = 5,511.92 × 2,225.75
  4. Step 4: Simplify right side
    3,994.18x = 12,268,117.25
  5. Step 5: Solve for x
    x = 12,268,117.25/3,994.18
  6. Step 6: Final answer
    x = 3,071.50

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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.