Home / 2,500.57-3,450.90-1,381.56

Finding the Fourth Proportional to 2,500.57, 3,450.90 and 1,381.56

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Solution

The fourth proportional to 2,500.57, 3,450.90 and 1,381.56 is: 1,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.57 : 3,450.90 = 1,381.56 : x
  2. Step 2: Convert to fraction form
    2,500.57/3,450.90 = 1,381.56/x
  3. Step 3: Cross multiply
    2,500.57x = 3,450.90 × 1,381.56
  4. Step 4: Simplify right side
    2,500.57x = 4,767,617.64
  5. Step 5: Solve for x
    x = 4,767,617.64/2,500.57
  6. Step 6: Final answer
    x = 1,906.61

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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.