Home / 3,783.34-5,219.57-2,790.99

Finding the Fourth Proportional to 3,783.34, 5,219.57 and 2,790.99

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Solution

The fourth proportional to 3,783.34, 5,219.57 and 2,790.99 is: 3,850.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.34 : 5,219.57 = 2,790.99 : x
  2. Step 2: Convert to fraction form
    3,783.34/5,219.57 = 2,790.99/x
  3. Step 3: Cross multiply
    3,783.34x = 5,219.57 × 2,790.99
  4. Step 4: Simplify right side
    3,783.34x = 14,567,774.65
  5. Step 5: Solve for x
    x = 14,567,774.65/3,783.34
  6. Step 6: Final answer
    x = 3,850.51

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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.