Home / 2,940.21-4,057.55-1,613.99

Finding the Fourth Proportional to 2,940.21, 4,057.55 and 1,613.99

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Solution

The fourth proportional to 2,940.21, 4,057.55 and 1,613.99 is: 2,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.21 : 4,057.55 = 1,613.99 : x
  2. Step 2: Convert to fraction form
    2,940.21/4,057.55 = 1,613.99/x
  3. Step 3: Cross multiply
    2,940.21x = 4,057.55 × 1,613.99
  4. Step 4: Simplify right side
    2,940.21x = 6,548,816.77
  5. Step 5: Solve for x
    x = 6,548,816.77/2,940.21
  6. Step 6: Final answer
    x = 2,227.33

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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.