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Finding the Fourth Proportional to 3,606.53, 4,980.69 and 2,979.18

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Solution

The fourth proportional to 3,606.53, 4,980.69 and 2,979.18 is: 4,114.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.53 : 4,980.69 = 2,979.18 : x
  2. Step 2: Convert to fraction form
    3,606.53/4,980.69 = 2,979.18/x
  3. Step 3: Cross multiply
    3,606.53x = 4,980.69 × 2,979.18
  4. Step 4: Simplify right side
    3,606.53x = 14,838,372.03
  5. Step 5: Solve for x
    x = 14,838,372.03/3,606.53
  6. Step 6: Final answer
    x = 4,114.31

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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.