Home / 2,579.40-3,869.10-1,704.60

Finding the Fourth Proportional to 2,579.40, 3,869.10 and 1,704.60

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Solution

The fourth proportional to 2,579.40, 3,869.10 and 1,704.60 is: 2,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.40 : 3,869.10 = 1,704.60 : x
  2. Step 2: Convert to fraction form
    2,579.40/3,869.10 = 1,704.60/x
  3. Step 3: Cross multiply
    2,579.40x = 3,869.10 × 1,704.60
  4. Step 4: Simplify right side
    2,579.40x = 6,595,267.86
  5. Step 5: Solve for x
    x = 6,595,267.86/2,579.40
  6. Step 6: Final answer
    x = 2,556.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.