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Finding the Fourth Proportional to 4,990.88, 7,487.00 and 3,952.81

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Solution

The fourth proportional to 4,990.88, 7,487.00 and 3,952.81 is: 5,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.88 : 7,487.00 = 3,952.81 : x
  2. Step 2: Convert to fraction form
    4,990.88/7,487.00 = 3,952.81/x
  3. Step 3: Cross multiply
    4,990.88x = 7,487.00 × 3,952.81
  4. Step 4: Simplify right side
    4,990.88x = 29,594,692.89
  5. Step 5: Solve for x
    x = 29,594,692.89/4,990.88
  6. Step 6: Final answer
    x = 5,929.75

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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.