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Finding the Fourth Proportional to 8,990.30, 13,482.03 and 2,748.41

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Solution

The fourth proportional to 8,990.30, 13,482.03 and 2,748.41 is: 4,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.30 : 13,482.03 = 2,748.41 : x
  2. Step 2: Convert to fraction form
    8,990.30/13,482.03 = 2,748.41/x
  3. Step 3: Cross multiply
    8,990.30x = 13,482.03 × 2,748.41
  4. Step 4: Simplify right side
    8,990.30x = 37,054,146.07
  5. Step 5: Solve for x
    x = 37,054,146.07/8,990.30
  6. Step 6: Final answer
    x = 4,121.57

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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.