Home / 2,790.79-3,847.44-2,704.53

Finding the Fourth Proportional to 2,790.79, 3,847.44 and 2,704.53

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Solution

The fourth proportional to 2,790.79, 3,847.44 and 2,704.53 is: 3,728.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.79 : 3,847.44 = 2,704.53 : x
  2. Step 2: Convert to fraction form
    2,790.79/3,847.44 = 2,704.53/x
  3. Step 3: Cross multiply
    2,790.79x = 3,847.44 × 2,704.53
  4. Step 4: Simplify right side
    2,790.79x = 10,405,516.90
  5. Step 5: Solve for x
    x = 10,405,516.90/2,790.79
  6. Step 6: Final answer
    x = 3,728.52

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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.