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Finding the Fourth Proportional to 3,621.78, 4,996.04 and 2,503.30

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Solution

The fourth proportional to 3,621.78, 4,996.04 and 2,503.30 is: 3,453.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.78 : 4,996.04 = 2,503.30 : x
  2. Step 2: Convert to fraction form
    3,621.78/4,996.04 = 2,503.30/x
  3. Step 3: Cross multiply
    3,621.78x = 4,996.04 × 2,503.30
  4. Step 4: Simplify right side
    3,621.78x = 12,506,586.93
  5. Step 5: Solve for x
    x = 12,506,586.93/3,621.78
  6. Step 6: Final answer
    x = 3,453.16

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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.