Home / 6,828.60-10,235.70-3,900.60

Finding the Fourth Proportional to 6,828.60, 10,235.70 and 3,900.60

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Solution

The fourth proportional to 6,828.60, 10,235.70 and 3,900.60 is: 5,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,828.60 : 10,235.70 = 3,900.60 : x
  2. Step 2: Convert to fraction form
    6,828.60/10,235.70 = 3,900.60/x
  3. Step 3: Cross multiply
    6,828.60x = 10,235.70 × 3,900.60
  4. Step 4: Simplify right side
    6,828.60x = 39,925,371.42
  5. Step 5: Solve for x
    x = 39,925,371.42/6,828.60
  6. Step 6: Final answer
    x = 5,846.79

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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.