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Finding the Fourth Proportional to 2,395.40, 3,571.95 and 2,104.09

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Solution

The fourth proportional to 2,395.40, 3,571.95 and 2,104.09 is: 3,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,395.40 : 3,571.95 = 2,104.09 : x
  2. Step 2: Convert to fraction form
    2,395.40/3,571.95 = 2,104.09/x
  3. Step 3: Cross multiply
    2,395.40x = 3,571.95 × 2,104.09
  4. Step 4: Simplify right side
    2,395.40x = 7,515,702.68
  5. Step 5: Solve for x
    x = 7,515,702.68/2,395.40
  6. Step 6: Final answer
    x = 3,137.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.