Home / 1,989.10-2,744.85-1,522.54

Finding the Fourth Proportional to 1,989.10, 2,744.85 and 1,522.54

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Solution

The fourth proportional to 1,989.10, 2,744.85 and 1,522.54 is: 2,101.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.10 : 2,744.85 = 1,522.54 : x
  2. Step 2: Convert to fraction form
    1,989.10/2,744.85 = 1,522.54/x
  3. Step 3: Cross multiply
    1,989.10x = 2,744.85 × 1,522.54
  4. Step 4: Simplify right side
    1,989.10x = 4,179,143.92
  5. Step 5: Solve for x
    x = 4,179,143.92/1,989.10
  6. Step 6: Final answer
    x = 2,101.02

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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.