Home / 3,993.92-5,511.54-2,225.72

Finding the Fourth Proportional to 3,993.92, 5,511.54 and 2,225.72

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Solution

The fourth proportional to 3,993.92, 5,511.54 and 2,225.72 is: 3,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.92 : 5,511.54 = 2,225.72 : x
  2. Step 2: Convert to fraction form
    3,993.92/5,511.54 = 2,225.72/x
  3. Step 3: Cross multiply
    3,993.92x = 5,511.54 × 2,225.72
  4. Step 4: Simplify right side
    3,993.92x = 12,267,144.81
  5. Step 5: Solve for x
    x = 12,267,144.81/3,993.92
  6. Step 6: Final answer
    x = 3,071.45

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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.