Home / 1,938.74-2,675.46-1,054.54

Finding the Fourth Proportional to 1,938.74, 2,675.46 and 1,054.54

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Solution

The fourth proportional to 1,938.74, 2,675.46 and 1,054.54 is: 1,455.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.74 : 2,675.46 = 1,054.54 : x
  2. Step 2: Convert to fraction form
    1,938.74/2,675.46 = 1,054.54/x
  3. Step 3: Cross multiply
    1,938.74x = 2,675.46 × 1,054.54
  4. Step 4: Simplify right side
    1,938.74x = 2,821,371.84
  5. Step 5: Solve for x
    x = 2,821,371.84/1,938.74
  6. Step 6: Final answer
    x = 1,455.26

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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.