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Finding the Fourth Proportional to 1,956.19, 2,933.74 and 656.95

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Solution

The fourth proportional to 1,956.19, 2,933.74 and 656.95 is: 985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.19 : 2,933.74 = 656.95 : x
  2. Step 2: Convert to fraction form
    1,956.19/2,933.74 = 656.95/x
  3. Step 3: Cross multiply
    1,956.19x = 2,933.74 × 656.95
  4. Step 4: Simplify right side
    1,956.19x = 1,927,320.49
  5. Step 5: Solve for x
    x = 1,927,320.49/1,956.19
  6. Step 6: Final answer
    x = 985.24

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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.