Home / 2,779.68-4,169.44-1,135.76

Finding the Fourth Proportional to 2,779.68, 4,169.44 and 1,135.76

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Solution

The fourth proportional to 2,779.68, 4,169.44 and 1,135.76 is: 1,703.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.68 : 4,169.44 = 1,135.76 : x
  2. Step 2: Convert to fraction form
    2,779.68/4,169.44 = 1,135.76/x
  3. Step 3: Cross multiply
    2,779.68x = 4,169.44 × 1,135.76
  4. Step 4: Simplify right side
    2,779.68x = 4,735,483.17
  5. Step 5: Solve for x
    x = 4,735,483.17/2,779.68
  6. Step 6: Final answer
    x = 1,703.61

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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.