Home / 6,808.72-10,212.96-3,880.78

Finding the Fourth Proportional to 6,808.72, 10,212.96 and 3,880.78

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Solution

The fourth proportional to 6,808.72, 10,212.96 and 3,880.78 is: 5,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,808.72 : 10,212.96 = 3,880.78 : x
  2. Step 2: Convert to fraction form
    6,808.72/10,212.96 = 3,880.78/x
  3. Step 3: Cross multiply
    6,808.72x = 10,212.96 × 3,880.78
  4. Step 4: Simplify right side
    6,808.72x = 39,634,250.91
  5. Step 5: Solve for x
    x = 39,634,250.91/6,808.72
  6. Step 6: Final answer
    x = 5,821.10

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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.