Home / 2,837.64-3,918.42-1,908.84

Finding the Fourth Proportional to 2,837.64, 3,918.42 and 1,908.84

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Solution

The fourth proportional to 2,837.64, 3,918.42 and 1,908.84 is: 2,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.64 : 3,918.42 = 1,908.84 : x
  2. Step 2: Convert to fraction form
    2,837.64/3,918.42 = 1,908.84/x
  3. Step 3: Cross multiply
    2,837.64x = 3,918.42 × 1,908.84
  4. Step 4: Simplify right side
    2,837.64x = 7,479,636.83
  5. Step 5: Solve for x
    x = 7,479,636.83/2,837.64
  6. Step 6: Final answer
    x = 2,635.87

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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.