Home / 1,918.14-2,873.43-1,783.14

Finding the Fourth Proportional to 1,918.14, 2,873.43 and 1,783.14

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Solution

The fourth proportional to 1,918.14, 2,873.43 and 1,783.14 is: 2,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.14 : 2,873.43 = 1,783.14 : x
  2. Step 2: Convert to fraction form
    1,918.14/2,873.43 = 1,783.14/x
  3. Step 3: Cross multiply
    1,918.14x = 2,873.43 × 1,783.14
  4. Step 4: Simplify right side
    1,918.14x = 5,123,727.97
  5. Step 5: Solve for x
    x = 5,123,727.97/1,918.14
  6. Step 6: Final answer
    x = 2,671.20

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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.