Home / 3,610.45-5,418.50-1,855.39

Finding the Fourth Proportional to 3,610.45, 5,418.50 and 1,855.39

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Solution

The fourth proportional to 3,610.45, 5,418.50 and 1,855.39 is: 2,784.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.45 : 5,418.50 = 1,855.39 : x
  2. Step 2: Convert to fraction form
    3,610.45/5,418.50 = 1,855.39/x
  3. Step 3: Cross multiply
    3,610.45x = 5,418.50 × 1,855.39
  4. Step 4: Simplify right side
    3,610.45x = 10,053,403.02
  5. Step 5: Solve for x
    x = 10,053,403.02/3,610.45
  6. Step 6: Final answer
    x = 2,784.53

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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.