Home / 1,942.11-2,927.81-1,816.83

Finding the Fourth Proportional to 1,942.11, 2,927.81 and 1,816.83

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Solution

The fourth proportional to 1,942.11, 2,927.81 and 1,816.83 is: 2,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.11 : 2,927.81 = 1,816.83 : x
  2. Step 2: Convert to fraction form
    1,942.11/2,927.81 = 1,816.83/x
  3. Step 3: Cross multiply
    1,942.11x = 2,927.81 × 1,816.83
  4. Step 4: Simplify right side
    1,942.11x = 5,319,323.96
  5. Step 5: Solve for x
    x = 5,319,323.96/1,942.11
  6. Step 6: Final answer
    x = 2,738.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.