Home / 1,854.87-2,556.12-1,383.31

Finding the Fourth Proportional to 1,854.87, 2,556.12 and 1,383.31

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Solution

The fourth proportional to 1,854.87, 2,556.12 and 1,383.31 is: 1,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.87 : 2,556.12 = 1,383.31 : x
  2. Step 2: Convert to fraction form
    1,854.87/2,556.12 = 1,383.31/x
  3. Step 3: Cross multiply
    1,854.87x = 2,556.12 × 1,383.31
  4. Step 4: Simplify right side
    1,854.87x = 3,535,906.36
  5. Step 5: Solve for x
    x = 3,535,906.36/1,854.87
  6. Step 6: Final answer
    x = 1,906.28

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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.