Home / 3,109.33-4,659.84-2,779.87

Finding the Fourth Proportional to 3,109.33, 4,659.84 and 2,779.87

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Solution

The fourth proportional to 3,109.33, 4,659.84 and 2,779.87 is: 4,166.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.33 : 4,659.84 = 2,779.87 : x
  2. Step 2: Convert to fraction form
    3,109.33/4,659.84 = 2,779.87/x
  3. Step 3: Cross multiply
    3,109.33x = 4,659.84 × 2,779.87
  4. Step 4: Simplify right side
    3,109.33x = 12,953,749.42
  5. Step 5: Solve for x
    x = 12,953,749.42/3,109.33
  6. Step 6: Final answer
    x = 4,166.09

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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.