Home / 7,718.16-11,578.32-2,522.72

Finding the Fourth Proportional to 7,718.16, 11,578.32 and 2,522.72

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Solution

The fourth proportional to 7,718.16, 11,578.32 and 2,522.72 is: 3,784.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.16 : 11,578.32 = 2,522.72 : x
  2. Step 2: Convert to fraction form
    7,718.16/11,578.32 = 2,522.72/x
  3. Step 3: Cross multiply
    7,718.16x = 11,578.32 × 2,522.72
  4. Step 4: Simplify right side
    7,718.16x = 29,208,859.43
  5. Step 5: Solve for x
    x = 29,208,859.43/7,718.16
  6. Step 6: Final answer
    x = 3,784.43

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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.