Home / 7,952.26-11,929.49-2,688.78

Finding the Fourth Proportional to 7,952.26, 11,929.49 and 2,688.78

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Solution

The fourth proportional to 7,952.26, 11,929.49 and 2,688.78 is: 4,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.26 : 11,929.49 = 2,688.78 : x
  2. Step 2: Convert to fraction form
    7,952.26/11,929.49 = 2,688.78/x
  3. Step 3: Cross multiply
    7,952.26x = 11,929.49 × 2,688.78
  4. Step 4: Simplify right side
    7,952.26x = 32,075,774.12
  5. Step 5: Solve for x
    x = 32,075,774.12/7,952.26
  6. Step 6: Final answer
    x = 4,033.54

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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.