Home / 6,107.56-8,427.96-4,120.80

Finding the Fourth Proportional to 6,107.56, 8,427.96 and 4,120.80

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Solution

The fourth proportional to 6,107.56, 8,427.96 and 4,120.80 is: 5,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.56 : 8,427.96 = 4,120.80 : x
  2. Step 2: Convert to fraction form
    6,107.56/8,427.96 = 4,120.80/x
  3. Step 3: Cross multiply
    6,107.56x = 8,427.96 × 4,120.80
  4. Step 4: Simplify right side
    6,107.56x = 34,729,937.57
  5. Step 5: Solve for x
    x = 34,729,937.57/6,107.56
  6. Step 6: Final answer
    x = 5,686.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.