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Finding the Fourth Proportional to 8,608.47, 12,907.53 and 2,984.28

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Solution

The fourth proportional to 8,608.47, 12,907.53 and 2,984.28 is: 4,474.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.47 : 12,907.53 = 2,984.28 : x
  2. Step 2: Convert to fraction form
    8,608.47/12,907.53 = 2,984.28/x
  3. Step 3: Cross multiply
    8,608.47x = 12,907.53 × 2,984.28
  4. Step 4: Simplify right side
    8,608.47x = 38,519,683.63
  5. Step 5: Solve for x
    x = 38,519,683.63/8,608.47
  6. Step 6: Final answer
    x = 4,474.63

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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.