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Finding the Fourth Proportional to 4,615, 6,368.82 and 2,519.32

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Solution

The fourth proportional to 4,615, 6,368.82 and 2,519.32 is: 3,476.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615 : 6,368.82 = 2,519.32 : x
  2. Step 2: Convert to fraction form
    4,615/6,368.82 = 2,519.32/x
  3. Step 3: Cross multiply
    4,615x = 6,368.82 × 2,519.32
  4. Step 4: Simplify right side
    4,615x = 16,045,095.60
  5. Step 5: Solve for x
    x = 16,045,095.60/4,615
  6. Step 6: Final answer
    x = 3,476.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.