Home / 2,940.93-4,057.97-2,156.85

Finding the Fourth Proportional to 2,940.93, 4,057.97 and 2,156.85

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Solution

The fourth proportional to 2,940.93, 4,057.97 and 2,156.85 is: 2,976.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.93 : 4,057.97 = 2,156.85 : x
  2. Step 2: Convert to fraction form
    2,940.93/4,057.97 = 2,156.85/x
  3. Step 3: Cross multiply
    2,940.93x = 4,057.97 × 2,156.85
  4. Step 4: Simplify right side
    2,940.93x = 8,752,421.81
  5. Step 5: Solve for x
    x = 8,752,421.81/2,940.93
  6. Step 6: Final answer
    x = 2,976.07

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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.