Home / 4,085.75-5,638.34-2,222.75

Finding the Fourth Proportional to 4,085.75, 5,638.34 and 2,222.75

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Solution

The fourth proportional to 4,085.75, 5,638.34 and 2,222.75 is: 3,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.75 : 5,638.34 = 2,222.75 : x
  2. Step 2: Convert to fraction form
    4,085.75/5,638.34 = 2,222.75/x
  3. Step 3: Cross multiply
    4,085.75x = 5,638.34 × 2,222.75
  4. Step 4: Simplify right side
    4,085.75x = 12,532,620.24
  5. Step 5: Solve for x
    x = 12,532,620.24/4,085.75
  6. Step 6: Final answer
    x = 3,067.40

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Half scale
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Double scale
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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.