Home / 6,812.40-10,226.70-3,853.20

Finding the Fourth Proportional to 6,812.40, 10,226.70 and 3,853.20

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Solution

The fourth proportional to 6,812.40, 10,226.70 and 3,853.20 is: 5,784.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.40 : 10,226.70 = 3,853.20 : x
  2. Step 2: Convert to fraction form
    6,812.40/10,226.70 = 3,853.20/x
  3. Step 3: Cross multiply
    6,812.40x = 10,226.70 × 3,853.20
  4. Step 4: Simplify right side
    6,812.40x = 39,405,520.44
  5. Step 5: Solve for x
    x = 39,405,520.44/6,812.40
  6. Step 6: Final answer
    x = 5,784.38

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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.