Home / 6,914.88-9,541.44-4,121.28

Finding the Fourth Proportional to 6,914.88, 9,541.44 and 4,121.28

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Solution

The fourth proportional to 6,914.88, 9,541.44 and 4,121.28 is: 5,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,914.88 : 9,541.44 = 4,121.28 : x
  2. Step 2: Convert to fraction form
    6,914.88/9,541.44 = 4,121.28/x
  3. Step 3: Cross multiply
    6,914.88x = 9,541.44 × 4,121.28
  4. Step 4: Simplify right side
    6,914.88x = 39,322,945.84
  5. Step 5: Solve for x
    x = 39,322,945.84/6,914.88
  6. Step 6: Final answer
    x = 5,686.71

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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.