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Finding the Fourth Proportional to 5,765, 8,653.66 and 2,479.72

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Solution

The fourth proportional to 5,765, 8,653.66 and 2,479.72 is: 3,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765 : 8,653.66 = 2,479.72 : x
  2. Step 2: Convert to fraction form
    5,765/8,653.66 = 2,479.72/x
  3. Step 3: Cross multiply
    5,765x = 8,653.66 × 2,479.72
  4. Step 4: Simplify right side
    5,765x = 21,458,653.78
  5. Step 5: Solve for x
    x = 21,458,653.78/5,765
  6. Step 6: Final answer
    x = 3,722.23

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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.