Home / 3,852.92-5,779.55-1,079.78

Finding the Fourth Proportional to 3,852.92, 5,779.55 and 1,079.78

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Solution

The fourth proportional to 3,852.92, 5,779.55 and 1,079.78 is: 1,619.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.92 : 5,779.55 = 1,079.78 : x
  2. Step 2: Convert to fraction form
    3,852.92/5,779.55 = 1,079.78/x
  3. Step 3: Cross multiply
    3,852.92x = 5,779.55 × 1,079.78
  4. Step 4: Simplify right side
    3,852.92x = 6,240,648.81
  5. Step 5: Solve for x
    x = 6,240,648.81/3,852.92
  6. Step 6: Final answer
    x = 1,619.72

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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.