Home / 3,187.87-4,779.96-1,237.79

Finding the Fourth Proportional to 3,187.87, 4,779.96 and 1,237.79

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Solution

The fourth proportional to 3,187.87, 4,779.96 and 1,237.79 is: 1,855.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.87 : 4,779.96 = 1,237.79 : x
  2. Step 2: Convert to fraction form
    3,187.87/4,779.96 = 1,237.79/x
  3. Step 3: Cross multiply
    3,187.87x = 4,779.96 × 1,237.79
  4. Step 4: Simplify right side
    3,187.87x = 5,916,586.69
  5. Step 5: Solve for x
    x = 5,916,586.69/3,187.87
  6. Step 6: Final answer
    x = 1,855.97

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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.