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Finding the Fourth Proportional to 7,907.54, 11,851.76 and 2,905.88

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Solution

The fourth proportional to 7,907.54, 11,851.76 and 2,905.88 is: 4,355.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.54 : 11,851.76 = 2,905.88 : x
  2. Step 2: Convert to fraction form
    7,907.54/11,851.76 = 2,905.88/x
  3. Step 3: Cross multiply
    7,907.54x = 11,851.76 × 2,905.88
  4. Step 4: Simplify right side
    7,907.54x = 34,439,792.35
  5. Step 5: Solve for x
    x = 34,439,792.35/7,907.54
  6. Step 6: Final answer
    x = 4,355.31

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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.