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Finding the Fourth Proportional to 1,962.27, 2,943.41 and 867.75

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Solution

The fourth proportional to 1,962.27, 2,943.41 and 867.75 is: 1,301.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.27 : 2,943.41 = 867.75 : x
  2. Step 2: Convert to fraction form
    1,962.27/2,943.41 = 867.75/x
  3. Step 3: Cross multiply
    1,962.27x = 2,943.41 × 867.75
  4. Step 4: Simplify right side
    1,962.27x = 2,554,139.69
  5. Step 5: Solve for x
    x = 2,554,139.69/1,962.27
  6. Step 6: Final answer
    x = 1,301.63

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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.