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Finding the Fourth Proportional to 1,956.42, 2,935.14 and 569.76

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Solution

The fourth proportional to 1,956.42, 2,935.14 and 569.76 is: 854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.42 : 2,935.14 = 569.76 : x
  2. Step 2: Convert to fraction form
    1,956.42/2,935.14 = 569.76/x
  3. Step 3: Cross multiply
    1,956.42x = 2,935.14 × 569.76
  4. Step 4: Simplify right side
    1,956.42x = 1,672,325.37
  5. Step 5: Solve for x
    x = 1,672,325.37/1,956.42
  6. Step 6: Final answer
    x = 854.79

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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.