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Finding the Fourth Proportional to 3,591.70, 4,956.20 and 2,019.76

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Solution

The fourth proportional to 3,591.70, 4,956.20 and 2,019.76 is: 2,787.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.70 : 4,956.20 = 2,019.76 : x
  2. Step 2: Convert to fraction form
    3,591.70/4,956.20 = 2,019.76/x
  3. Step 3: Cross multiply
    3,591.70x = 4,956.20 × 2,019.76
  4. Step 4: Simplify right side
    3,591.70x = 10,010,324.41
  5. Step 5: Solve for x
    x = 10,010,324.41/3,591.70
  6. Step 6: Final answer
    x = 2,787.07

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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.