Home / 7,724.64-11,578.04-3,555.91

Finding the Fourth Proportional to 7,724.64, 11,578.04 and 3,555.91

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Solution

The fourth proportional to 7,724.64, 11,578.04 and 3,555.91 is: 5,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.64 : 11,578.04 = 3,555.91 : x
  2. Step 2: Convert to fraction form
    7,724.64/11,578.04 = 3,555.91/x
  3. Step 3: Cross multiply
    7,724.64x = 11,578.04 × 3,555.91
  4. Step 4: Simplify right side
    7,724.64x = 41,170,421.49
  5. Step 5: Solve for x
    x = 41,170,421.49/7,724.64
  6. Step 6: Final answer
    x = 5,329.75

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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.