Home / 6,811.35-10,200.57-3,880.77

Finding the Fourth Proportional to 6,811.35, 10,200.57 and 3,880.77

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Solution

The fourth proportional to 6,811.35, 10,200.57 and 3,880.77 is: 5,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.35 : 10,200.57 = 3,880.77 : x
  2. Step 2: Convert to fraction form
    6,811.35/10,200.57 = 3,880.77/x
  3. Step 3: Cross multiply
    6,811.35x = 10,200.57 × 3,880.77
  4. Step 4: Simplify right side
    6,811.35x = 39,586,066.04
  5. Step 5: Solve for x
    x = 39,586,066.04/6,811.35
  6. Step 6: Final answer
    x = 5,811.78

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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.