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Finding the Fourth Proportional to 5,376.88, 8,068.43 and 2,256.61

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Solution

The fourth proportional to 5,376.88, 8,068.43 and 2,256.61 is: 3,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.88 : 8,068.43 = 2,256.61 : x
  2. Step 2: Convert to fraction form
    5,376.88/8,068.43 = 2,256.61/x
  3. Step 3: Cross multiply
    5,376.88x = 8,068.43 × 2,256.61
  4. Step 4: Simplify right side
    5,376.88x = 18,207,299.82
  5. Step 5: Solve for x
    x = 18,207,299.82/5,376.88
  6. Step 6: Final answer
    x = 3,386.22

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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.