Home / 5,289.82-7,933.38-1,779.28

Finding the Fourth Proportional to 5,289.82, 7,933.38 and 1,779.28

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Solution

The fourth proportional to 5,289.82, 7,933.38 and 1,779.28 is: 2,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.82 : 7,933.38 = 1,779.28 : x
  2. Step 2: Convert to fraction form
    5,289.82/7,933.38 = 1,779.28/x
  3. Step 3: Cross multiply
    5,289.82x = 7,933.38 × 1,779.28
  4. Step 4: Simplify right side
    5,289.82x = 14,115,704.37
  5. Step 5: Solve for x
    x = 14,115,704.37/5,289.82
  6. Step 6: Final answer
    x = 2,668.47

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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.