Home / 3,191.54-4,787.27-1,111.59

Finding the Fourth Proportional to 3,191.54, 4,787.27 and 1,111.59

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Solution

The fourth proportional to 3,191.54, 4,787.27 and 1,111.59 is: 1,667.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.54 : 4,787.27 = 1,111.59 : x
  2. Step 2: Convert to fraction form
    3,191.54/4,787.27 = 1,111.59/x
  3. Step 3: Cross multiply
    3,191.54x = 4,787.27 × 1,111.59
  4. Step 4: Simplify right side
    3,191.54x = 5,321,481.46
  5. Step 5: Solve for x
    x = 5,321,481.46/3,191.54
  6. Step 6: Final answer
    x = 1,667.37

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1.5x scale

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.