Home / 3,556.95-4,908.60-1,985.05

Finding the Fourth Proportional to 3,556.95, 4,908.60 and 1,985.05

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Solution

The fourth proportional to 3,556.95, 4,908.60 and 1,985.05 is: 2,739.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.95 : 4,908.60 = 1,985.05 : x
  2. Step 2: Convert to fraction form
    3,556.95/4,908.60 = 1,985.05/x
  3. Step 3: Cross multiply
    3,556.95x = 4,908.60 × 1,985.05
  4. Step 4: Simplify right side
    3,556.95x = 9,743,801.68
  5. Step 5: Solve for x
    x = 9,743,801.68/3,556.95
  6. Step 6: Final answer
    x = 2,739.37

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1.5x scale

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.