Home / 3,556.78-5,331.73-1,997.53

Finding the Fourth Proportional to 3,556.78, 5,331.73 and 1,997.53

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Solution

The fourth proportional to 3,556.78, 5,331.73 and 1,997.53 is: 2,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.78 : 5,331.73 = 1,997.53 : x
  2. Step 2: Convert to fraction form
    3,556.78/5,331.73 = 1,997.53/x
  3. Step 3: Cross multiply
    3,556.78x = 5,331.73 × 1,997.53
  4. Step 4: Simplify right side
    3,556.78x = 10,650,290.63
  5. Step 5: Solve for x
    x = 10,650,290.63/3,556.78
  6. Step 6: Final answer
    x = 2,994.36

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1.5x scale

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.