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Finding the Fourth Proportional to 3,288.72, 4,934.16 and 1,558.56

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Solution

The fourth proportional to 3,288.72, 4,934.16 and 1,558.56 is: 2,338.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.72 : 4,934.16 = 1,558.56 : x
  2. Step 2: Convert to fraction form
    3,288.72/4,934.16 = 1,558.56/x
  3. Step 3: Cross multiply
    3,288.72x = 4,934.16 × 1,558.56
  4. Step 4: Simplify right side
    3,288.72x = 7,690,184.41
  5. Step 5: Solve for x
    x = 7,690,184.41/3,288.72
  6. Step 6: Final answer
    x = 2,338.35

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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.