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Finding the Fourth Proportional to 4,576.03, 6,859.99 and 1,978.09

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Solution

The fourth proportional to 4,576.03, 6,859.99 and 1,978.09 is: 2,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,576.03 : 6,859.99 = 1,978.09 : x
  2. Step 2: Convert to fraction form
    4,576.03/6,859.99 = 1,978.09/x
  3. Step 3: Cross multiply
    4,576.03x = 6,859.99 × 1,978.09
  4. Step 4: Simplify right side
    4,576.03x = 13,569,677.62
  5. Step 5: Solve for x
    x = 13,569,677.62/4,576.03
  6. Step 6: Final answer
    x = 2,965.38

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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.