Home / 1,918.02-2,853.69-1,911.54

Finding the Fourth Proportional to 1,918.02, 2,853.69 and 1,911.54

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Solution

The fourth proportional to 1,918.02, 2,853.69 and 1,911.54 is: 2,844.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.02 : 2,853.69 = 1,911.54 : x
  2. Step 2: Convert to fraction form
    1,918.02/2,853.69 = 1,911.54/x
  3. Step 3: Cross multiply
    1,918.02x = 2,853.69 × 1,911.54
  4. Step 4: Simplify right side
    1,918.02x = 5,454,942.58
  5. Step 5: Solve for x
    x = 5,454,942.58/1,918.02
  6. Step 6: Final answer
    x = 2,844.05

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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.