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Finding the Fourth Proportional to 3,134.76, 4,701.06 and 942.90

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Solution

The fourth proportional to 3,134.76, 4,701.06 and 942.90 is: 1,414.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.76 : 4,701.06 = 942.90 : x
  2. Step 2: Convert to fraction form
    3,134.76/4,701.06 = 942.90/x
  3. Step 3: Cross multiply
    3,134.76x = 4,701.06 × 942.90
  4. Step 4: Simplify right side
    3,134.76x = 4,432,629.47
  5. Step 5: Solve for x
    x = 4,432,629.47/3,134.76
  6. Step 6: Final answer
    x = 1,414.03

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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.