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Finding the Fourth Proportional to 1,956.87, 2,938.04 and 1,867.56

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Solution

The fourth proportional to 1,956.87, 2,938.04 and 1,867.56 is: 2,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.87 : 2,938.04 = 1,867.56 : x
  2. Step 2: Convert to fraction form
    1,956.87/2,938.04 = 1,867.56/x
  3. Step 3: Cross multiply
    1,956.87x = 2,938.04 × 1,867.56
  4. Step 4: Simplify right side
    1,956.87x = 5,486,965.98
  5. Step 5: Solve for x
    x = 5,486,965.98/1,956.87
  6. Step 6: Final answer
    x = 2,803.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.