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Finding the Fourth Proportional to 3,606.98, 4,979.49 and 2,210.54

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Solution

The fourth proportional to 3,606.98, 4,979.49 and 2,210.54 is: 3,051.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.98 : 4,979.49 = 2,210.54 : x
  2. Step 2: Convert to fraction form
    3,606.98/4,979.49 = 2,210.54/x
  3. Step 3: Cross multiply
    3,606.98x = 4,979.49 × 2,210.54
  4. Step 4: Simplify right side
    3,606.98x = 11,007,361.82
  5. Step 5: Solve for x
    x = 11,007,361.82/3,606.98
  6. Step 6: Final answer
    x = 3,051.68

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1.5x scale

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.