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Finding the Fourth Proportional to 3,135.44, 4,699.92 and 1,489.52

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Solution

The fourth proportional to 3,135.44, 4,699.92 and 1,489.52 is: 2,232.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.44 : 4,699.92 = 1,489.52 : x
  2. Step 2: Convert to fraction form
    3,135.44/4,699.92 = 1,489.52/x
  3. Step 3: Cross multiply
    3,135.44x = 4,699.92 × 1,489.52
  4. Step 4: Simplify right side
    3,135.44x = 7,000,624.84
  5. Step 5: Solve for x
    x = 7,000,624.84/3,135.44
  6. Step 6: Final answer
    x = 2,232.74

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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.