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Finding the Fourth Proportional to 1,956.96, 2,931.12 and 1,304.64

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Solution

The fourth proportional to 1,956.96, 2,931.12 and 1,304.64 is: 1,954.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.96 : 2,931.12 = 1,304.64 : x
  2. Step 2: Convert to fraction form
    1,956.96/2,931.12 = 1,304.64/x
  3. Step 3: Cross multiply
    1,956.96x = 2,931.12 × 1,304.64
  4. Step 4: Simplify right side
    1,956.96x = 3,824,056.40
  5. Step 5: Solve for x
    x = 3,824,056.40/1,956.96
  6. Step 6: Final answer
    x = 1,954.08

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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.