Home / 3,927.56-5,891.34-1,191.56

Finding the Fourth Proportional to 3,927.56, 5,891.34 and 1,191.56

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Solution

The fourth proportional to 3,927.56, 5,891.34 and 1,191.56 is: 1,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.56 : 5,891.34 = 1,191.56 : x
  2. Step 2: Convert to fraction form
    3,927.56/5,891.34 = 1,191.56/x
  3. Step 3: Cross multiply
    3,927.56x = 5,891.34 × 1,191.56
  4. Step 4: Simplify right side
    3,927.56x = 7,019,904.29
  5. Step 5: Solve for x
    x = 7,019,904.29/3,927.56
  6. Step 6: Final answer
    x = 1,787.34

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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.