Home / 3,312.60-4,571.82-2,137.09

Finding the Fourth Proportional to 3,312.60, 4,571.82 and 2,137.09

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Solution

The fourth proportional to 3,312.60, 4,571.82 and 2,137.09 is: 2,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.60 : 4,571.82 = 2,137.09 : x
  2. Step 2: Convert to fraction form
    3,312.60/4,571.82 = 2,137.09/x
  3. Step 3: Cross multiply
    3,312.60x = 4,571.82 × 2,137.09
  4. Step 4: Simplify right side
    3,312.60x = 9,770,390.80
  5. Step 5: Solve for x
    x = 9,770,390.80/3,312.60
  6. Step 6: Final answer
    x = 2,949.46

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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.