Home / 2,800.45-4,194.60-1,816.30

Finding the Fourth Proportional to 2,800.45, 4,194.60 and 1,816.30

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Solution

The fourth proportional to 2,800.45, 4,194.60 and 1,816.30 is: 2,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.45 : 4,194.60 = 1,816.30 : x
  2. Step 2: Convert to fraction form
    2,800.45/4,194.60 = 1,816.30/x
  3. Step 3: Cross multiply
    2,800.45x = 4,194.60 × 1,816.30
  4. Step 4: Simplify right side
    2,800.45x = 7,618,651.98
  5. Step 5: Solve for x
    x = 7,618,651.98/2,800.45
  6. Step 6: Final answer
    x = 2,720.51

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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.