Home / 4,779.45-7,169.15-1,857.75

Finding the Fourth Proportional to 4,779.45, 7,169.15 and 1,857.75

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Solution

The fourth proportional to 4,779.45, 7,169.15 and 1,857.75 is: 2,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.45 : 7,169.15 = 1,857.75 : x
  2. Step 2: Convert to fraction form
    4,779.45/7,169.15 = 1,857.75/x
  3. Step 3: Cross multiply
    4,779.45x = 7,169.15 × 1,857.75
  4. Step 4: Simplify right side
    4,779.45x = 13,318,508.56
  5. Step 5: Solve for x
    x = 13,318,508.56/4,779.45
  6. Step 6: Final answer
    x = 2,786.62

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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.