Home / 3,956.75-5,460.71-2,278.23

Finding the Fourth Proportional to 3,956.75, 5,460.71 and 2,278.23

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Solution

The fourth proportional to 3,956.75, 5,460.71 and 2,278.23 is: 3,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.75 : 5,460.71 = 2,278.23 : x
  2. Step 2: Convert to fraction form
    3,956.75/5,460.71 = 2,278.23/x
  3. Step 3: Cross multiply
    3,956.75x = 5,460.71 × 2,278.23
  4. Step 4: Simplify right side
    3,956.75x = 12,440,759.04
  5. Step 5: Solve for x
    x = 12,440,759.04/3,956.75
  6. Step 6: Final answer
    x = 3,144.18

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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.