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Finding the Fourth Proportional to 5,255.84, 7,874.94 and 2,619.74

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Solution

The fourth proportional to 5,255.84, 7,874.94 and 2,619.74 is: 3,925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.84 : 7,874.94 = 2,619.74 : x
  2. Step 2: Convert to fraction form
    5,255.84/7,874.94 = 2,619.74/x
  3. Step 3: Cross multiply
    5,255.84x = 7,874.94 × 2,619.74
  4. Step 4: Simplify right side
    5,255.84x = 20,630,295.32
  5. Step 5: Solve for x
    x = 20,630,295.32/5,255.84
  6. Step 6: Final answer
    x = 3,925.21

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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.