Home / 2,286.72-3,431.08-2,188.32

Finding the Fourth Proportional to 2,286.72, 3,431.08 and 2,188.32

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Solution

The fourth proportional to 2,286.72, 3,431.08 and 2,188.32 is: 3,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.72 : 3,431.08 = 2,188.32 : x
  2. Step 2: Convert to fraction form
    2,286.72/3,431.08 = 2,188.32/x
  3. Step 3: Cross multiply
    2,286.72x = 3,431.08 × 2,188.32
  4. Step 4: Simplify right side
    2,286.72x = 7,508,300.99
  5. Step 5: Solve for x
    x = 7,508,300.99/2,286.72
  6. Step 6: Final answer
    x = 3,283.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.