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Finding the Fourth Proportional to 4,914.81, 7,372.35 and 1,953.79

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Solution

The fourth proportional to 4,914.81, 7,372.35 and 1,953.79 is: 2,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.81 : 7,372.35 = 1,953.79 : x
  2. Step 2: Convert to fraction form
    4,914.81/7,372.35 = 1,953.79/x
  3. Step 3: Cross multiply
    4,914.81x = 7,372.35 × 1,953.79
  4. Step 4: Simplify right side
    4,914.81x = 14,404,005.28
  5. Step 5: Solve for x
    x = 14,404,005.28/4,914.81
  6. Step 6: Final answer
    x = 2,930.73

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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.