Home / 6,828.41-9,419.83-4,171.21

Finding the Fourth Proportional to 6,828.41, 9,419.83 and 4,171.21

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Solution

The fourth proportional to 6,828.41, 9,419.83 and 4,171.21 is: 5,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,828.41 : 9,419.83 = 4,171.21 : x
  2. Step 2: Convert to fraction form
    6,828.41/9,419.83 = 4,171.21/x
  3. Step 3: Cross multiply
    6,828.41x = 9,419.83 × 4,171.21
  4. Step 4: Simplify right side
    6,828.41x = 39,292,055.12
  5. Step 5: Solve for x
    x = 39,292,055.12/6,828.41
  6. Step 6: Final answer
    x = 5,754.20

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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.