Home / 3,187.09-4,779.29-1,237.96

Finding the Fourth Proportional to 3,187.09, 4,779.29 and 1,237.96

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Solution

The fourth proportional to 3,187.09, 4,779.29 and 1,237.96 is: 1,856.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.09 : 4,779.29 = 1,237.96 : x
  2. Step 2: Convert to fraction form
    3,187.09/4,779.29 = 1,237.96/x
  3. Step 3: Cross multiply
    3,187.09x = 4,779.29 × 1,237.96
  4. Step 4: Simplify right side
    3,187.09x = 5,916,563.66
  5. Step 5: Solve for x
    x = 5,916,563.66/3,187.09
  6. Step 6: Final answer
    x = 1,856.42

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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.