Home / 7,973.84-11,966.24-2,779.72

Finding the Fourth Proportional to 7,973.84, 11,966.24 and 2,779.72

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Solution

The fourth proportional to 7,973.84, 11,966.24 and 2,779.72 is: 4,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.84 : 11,966.24 = 2,779.72 : x
  2. Step 2: Convert to fraction form
    7,973.84/11,966.24 = 2,779.72/x
  3. Step 3: Cross multiply
    7,973.84x = 11,966.24 × 2,779.72
  4. Step 4: Simplify right side
    7,973.84x = 33,262,796.65
  5. Step 5: Solve for x
    x = 33,262,796.65/7,973.84
  6. Step 6: Final answer
    x = 4,171.49

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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.