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Finding the Fourth Proportional to 2,943.05, 4,062.11 and 1,684.83

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Solution

The fourth proportional to 2,943.05, 4,062.11 and 1,684.83 is: 2,325.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.05 : 4,062.11 = 1,684.83 : x
  2. Step 2: Convert to fraction form
    2,943.05/4,062.11 = 1,684.83/x
  3. Step 3: Cross multiply
    2,943.05x = 4,062.11 × 1,684.83
  4. Step 4: Simplify right side
    2,943.05x = 6,843,948.75
  5. Step 5: Solve for x
    x = 6,843,948.75/2,943.05
  6. Step 6: Final answer
    x = 2,325.47

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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.