Home / 2,450.50-3,381.84-1,388.37

Finding the Fourth Proportional to 2,450.50, 3,381.84 and 1,388.37

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Solution

The fourth proportional to 2,450.50, 3,381.84 and 1,388.37 is: 1,916.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.50 : 3,381.84 = 1,388.37 : x
  2. Step 2: Convert to fraction form
    2,450.50/3,381.84 = 1,388.37/x
  3. Step 3: Cross multiply
    2,450.50x = 3,381.84 × 1,388.37
  4. Step 4: Simplify right side
    2,450.50x = 4,695,245.20
  5. Step 5: Solve for x
    x = 4,695,245.20/2,450.50
  6. Step 6: Final answer
    x = 1,916.04

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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.