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Finding the Fourth Proportional to 3,606.71, 4,977.81 and 2,611.63

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Solution

The fourth proportional to 3,606.71, 4,977.81 and 2,611.63 is: 3,604.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.71 : 4,977.81 = 2,611.63 : x
  2. Step 2: Convert to fraction form
    3,606.71/4,977.81 = 2,611.63/x
  3. Step 3: Cross multiply
    3,606.71x = 4,977.81 × 2,611.63
  4. Step 4: Simplify right side
    3,606.71x = 13,000,185.49
  5. Step 5: Solve for x
    x = 13,000,185.49/3,606.71
  6. Step 6: Final answer
    x = 3,604.44

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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.