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Finding the Fourth Proportional to 4,265.56, 6,399.06 and 1,957

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Solution

The fourth proportional to 4,265.56, 6,399.06 and 1,957 is: 2,935.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,265.56 : 6,399.06 = 1,957 : x
  2. Step 2: Convert to fraction form
    4,265.56/6,399.06 = 1,957/x
  3. Step 3: Cross multiply
    4,265.56x = 6,399.06 × 1,957
  4. Step 4: Simplify right side
    4,265.56x = 12,522,960.42
  5. Step 5: Solve for x
    x = 12,522,960.42/4,265.56
  6. Step 6: Final answer
    x = 2,935.83

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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.