Home / 3,126.42-4,687.31-1,893.54

Finding the Fourth Proportional to 3,126.42, 4,687.31 and 1,893.54

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Solution

The fourth proportional to 3,126.42, 4,687.31 and 1,893.54 is: 2,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.42 : 4,687.31 = 1,893.54 : x
  2. Step 2: Convert to fraction form
    3,126.42/4,687.31 = 1,893.54/x
  3. Step 3: Cross multiply
    3,126.42x = 4,687.31 × 1,893.54
  4. Step 4: Simplify right side
    3,126.42x = 8,875,599.51
  5. Step 5: Solve for x
    x = 8,875,599.51/3,126.42
  6. Step 6: Final answer
    x = 2,838.90

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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.