Home / 3,956.60-5,460.30-2,278.56

Finding the Fourth Proportional to 3,956.60, 5,460.30 and 2,278.56

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Solution

The fourth proportional to 3,956.60, 5,460.30 and 2,278.56 is: 3,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.60 : 5,460.30 = 2,278.56 : x
  2. Step 2: Convert to fraction form
    3,956.60/5,460.30 = 2,278.56/x
  3. Step 3: Cross multiply
    3,956.60x = 5,460.30 × 2,278.56
  4. Step 4: Simplify right side
    3,956.60x = 12,441,621.17
  5. Step 5: Solve for x
    x = 12,441,621.17/3,956.60
  6. Step 6: Final answer
    x = 3,144.52

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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.