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Finding the Fourth Proportional to 5,261.76, 7,893.49 and 1,975.11

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Solution

The fourth proportional to 5,261.76, 7,893.49 and 1,975.11 is: 2,962.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.76 : 7,893.49 = 1,975.11 : x
  2. Step 2: Convert to fraction form
    5,261.76/7,893.49 = 1,975.11/x
  3. Step 3: Cross multiply
    5,261.76x = 7,893.49 × 1,975.11
  4. Step 4: Simplify right side
    5,261.76x = 15,590,511.03
  5. Step 5: Solve for x
    x = 15,590,511.03/5,261.76
  6. Step 6: Final answer
    x = 2,962.98

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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.