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Finding the Fourth Proportional to 1,954.65, 2,918.04 and 1,886.31

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Solution

The fourth proportional to 1,954.65, 2,918.04 and 1,886.31 is: 2,816.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.65 : 2,918.04 = 1,886.31 : x
  2. Step 2: Convert to fraction form
    1,954.65/2,918.04 = 1,886.31/x
  3. Step 3: Cross multiply
    1,954.65x = 2,918.04 × 1,886.31
  4. Step 4: Simplify right side
    1,954.65x = 5,504,328.03
  5. Step 5: Solve for x
    x = 5,504,328.03/1,954.65
  6. Step 6: Final answer
    x = 2,816.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.