Home / 1,885.20-2,604.60-1,729.68

Finding the Fourth Proportional to 1,885.20, 2,604.60 and 1,729.68

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Solution

The fourth proportional to 1,885.20, 2,604.60 and 1,729.68 is: 2,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.20 : 2,604.60 = 1,729.68 : x
  2. Step 2: Convert to fraction form
    1,885.20/2,604.60 = 1,729.68/x
  3. Step 3: Cross multiply
    1,885.20x = 2,604.60 × 1,729.68
  4. Step 4: Simplify right side
    1,885.20x = 4,505,124.53
  5. Step 5: Solve for x
    x = 4,505,124.53/1,885.20
  6. Step 6: Final answer
    x = 2,389.73

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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.