Home / 4,185.56-6,278.34-1,107.56

Finding the Fourth Proportional to 4,185.56, 6,278.34 and 1,107.56

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Solution

The fourth proportional to 4,185.56, 6,278.34 and 1,107.56 is: 1,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.56 : 6,278.34 = 1,107.56 : x
  2. Step 2: Convert to fraction form
    4,185.56/6,278.34 = 1,107.56/x
  3. Step 3: Cross multiply
    4,185.56x = 6,278.34 × 1,107.56
  4. Step 4: Simplify right side
    4,185.56x = 6,953,658.10
  5. Step 5: Solve for x
    x = 6,953,658.10/4,185.56
  6. Step 6: Final answer
    x = 1,661.34

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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.