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Finding the Fourth Proportional to 3,129.54, 4,696.62 and 2,520.59

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Solution

The fourth proportional to 3,129.54, 4,696.62 and 2,520.59 is: 3,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.54 : 4,696.62 = 2,520.59 : x
  2. Step 2: Convert to fraction form
    3,129.54/4,696.62 = 2,520.59/x
  3. Step 3: Cross multiply
    3,129.54x = 4,696.62 × 2,520.59
  4. Step 4: Simplify right side
    3,129.54x = 11,838,253.41
  5. Step 5: Solve for x
    x = 11,838,253.41/3,129.54
  6. Step 6: Final answer
    x = 3,782.75

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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.