Home / 2,940.15-4,057.62-1,943.70

Finding the Fourth Proportional to 2,940.15, 4,057.62 and 1,943.70

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Solution

The fourth proportional to 2,940.15, 4,057.62 and 1,943.70 is: 2,682.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.15 : 4,057.62 = 1,943.70 : x
  2. Step 2: Convert to fraction form
    2,940.15/4,057.62 = 1,943.70/x
  3. Step 3: Cross multiply
    2,940.15x = 4,057.62 × 1,943.70
  4. Step 4: Simplify right side
    2,940.15x = 7,886,795.99
  5. Step 5: Solve for x
    x = 7,886,795.99/2,940.15
  6. Step 6: Final answer
    x = 2,682.45

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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.