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Finding the Fourth Proportional to 1,940.65, 2,908.90 and 1,015.27

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Solution

The fourth proportional to 1,940.65, 2,908.90 and 1,015.27 is: 1,521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.65 : 2,908.90 = 1,015.27 : x
  2. Step 2: Convert to fraction form
    1,940.65/2,908.90 = 1,015.27/x
  3. Step 3: Cross multiply
    1,940.65x = 2,908.90 × 1,015.27
  4. Step 4: Simplify right side
    1,940.65x = 2,953,313.83
  5. Step 5: Solve for x
    x = 2,953,313.83/1,940.65
  6. Step 6: Final answer
    x = 1,521.82

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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.