Home / 2,803.41-3,868.91-2,006.81

Finding the Fourth Proportional to 2,803.41, 3,868.91 and 2,006.81

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Solution

The fourth proportional to 2,803.41, 3,868.91 and 2,006.81 is: 2,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.41 : 3,868.91 = 2,006.81 : x
  2. Step 2: Convert to fraction form
    2,803.41/3,868.91 = 2,006.81/x
  3. Step 3: Cross multiply
    2,803.41x = 3,868.91 × 2,006.81
  4. Step 4: Simplify right side
    2,803.41x = 7,764,152.95
  5. Step 5: Solve for x
    x = 7,764,152.95/2,803.41
  6. Step 6: Final answer
    x = 2,769.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.