Home / 7,973.28-11,960.28-2,779.56

Finding the Fourth Proportional to 7,973.28, 11,960.28 and 2,779.56

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Solution

The fourth proportional to 7,973.28, 11,960.28 and 2,779.56 is: 4,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.28 : 11,960.28 = 2,779.56 : x
  2. Step 2: Convert to fraction form
    7,973.28/11,960.28 = 2,779.56/x
  3. Step 3: Cross multiply
    7,973.28x = 11,960.28 × 2,779.56
  4. Step 4: Simplify right side
    7,973.28x = 33,244,315.88
  5. Step 5: Solve for x
    x = 33,244,315.88/7,973.28
  6. Step 6: Final answer
    x = 4,169.47

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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.