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Finding the Fourth Proportional to 2,591.10, 3,900.65 and 2,361.47

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Solution

The fourth proportional to 2,591.10, 3,900.65 and 2,361.47 is: 3,554.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.10 : 3,900.65 = 2,361.47 : x
  2. Step 2: Convert to fraction form
    2,591.10/3,900.65 = 2,361.47/x
  3. Step 3: Cross multiply
    2,591.10x = 3,900.65 × 2,361.47
  4. Step 4: Simplify right side
    2,591.10x = 9,211,236.64
  5. Step 5: Solve for x
    x = 9,211,236.64/2,591.10
  6. Step 6: Final answer
    x = 3,554.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.