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Finding the Fourth Proportional to 2,951.99, 4,072.19 and 1,943.54

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Solution

The fourth proportional to 2,951.99, 4,072.19 and 1,943.54 is: 2,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.99 : 4,072.19 = 1,943.54 : x
  2. Step 2: Convert to fraction form
    2,951.99/4,072.19 = 1,943.54/x
  3. Step 3: Cross multiply
    2,951.99x = 4,072.19 × 1,943.54
  4. Step 4: Simplify right side
    2,951.99x = 7,914,434.07
  5. Step 5: Solve for x
    x = 7,914,434.07/2,951.99
  6. Step 6: Final answer
    x = 2,681.05

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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.