Home / 1,960.15-2,940.96-1,180.70

Finding the Fourth Proportional to 1,960.15, 2,940.96 and 1,180.70

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Solution

The fourth proportional to 1,960.15, 2,940.96 and 1,180.70 is: 1,771.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.15 : 2,940.96 = 1,180.70 : x
  2. Step 2: Convert to fraction form
    1,960.15/2,940.96 = 1,180.70/x
  3. Step 3: Cross multiply
    1,960.15x = 2,940.96 × 1,180.70
  4. Step 4: Simplify right side
    1,960.15x = 3,472,391.47
  5. Step 5: Solve for x
    x = 3,472,391.47/1,960.15
  6. Step 6: Final answer
    x = 1,771.49

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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.