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Finding the Fourth Proportional to 3,956.95, 5,460.62 and 2,188.62

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Solution

The fourth proportional to 3,956.95, 5,460.62 and 2,188.62 is: 3,020.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.95 : 5,460.62 = 2,188.62 : x
  2. Step 2: Convert to fraction form
    3,956.95/5,460.62 = 2,188.62/x
  3. Step 3: Cross multiply
    3,956.95x = 5,460.62 × 2,188.62
  4. Step 4: Simplify right side
    3,956.95x = 11,951,211.20
  5. Step 5: Solve for x
    x = 11,951,211.20/3,956.95
  6. Step 6: Final answer
    x = 3,020.31

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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.