Home / 6,828.72-10,233.36-3,121.68

Finding the Fourth Proportional to 6,828.72, 10,233.36 and 3,121.68

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Solution

The fourth proportional to 6,828.72, 10,233.36 and 3,121.68 is: 4,678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,828.72 : 10,233.36 = 3,121.68 : x
  2. Step 2: Convert to fraction form
    6,828.72/10,233.36 = 3,121.68/x
  3. Step 3: Cross multiply
    6,828.72x = 10,233.36 × 3,121.68
  4. Step 4: Simplify right side
    6,828.72x = 31,945,275.24
  5. Step 5: Solve for x
    x = 31,945,275.24/6,828.72
  6. Step 6: Final answer
    x = 4,678.08

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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.