Home / 7,722.04-11,583.07-1,878.65

Finding the Fourth Proportional to 7,722.04, 11,583.07 and 1,878.65

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Solution

The fourth proportional to 7,722.04, 11,583.07 and 1,878.65 is: 2,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.04 : 11,583.07 = 1,878.65 : x
  2. Step 2: Convert to fraction form
    7,722.04/11,583.07 = 1,878.65/x
  3. Step 3: Cross multiply
    7,722.04x = 11,583.07 × 1,878.65
  4. Step 4: Simplify right side
    7,722.04x = 21,760,515.28
  5. Step 5: Solve for x
    x = 21,760,515.28/7,722.04
  6. Step 6: Final answer
    x = 2,817.98

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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.