Home / 4,779.69-7,169.40-1,858.56

Finding the Fourth Proportional to 4,779.69, 7,169.40 and 1,858.56

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Solution

The fourth proportional to 4,779.69, 7,169.40 and 1,858.56 is: 2,787.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.69 : 7,169.40 = 1,858.56 : x
  2. Step 2: Convert to fraction form
    4,779.69/7,169.40 = 1,858.56/x
  3. Step 3: Cross multiply
    4,779.69x = 7,169.40 × 1,858.56
  4. Step 4: Simplify right side
    4,779.69x = 13,324,760.06
  5. Step 5: Solve for x
    x = 13,324,760.06/4,779.69
  6. Step 6: Final answer
    x = 2,787.79

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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.