Home / 3,221.55-4,835.45-1,556.85

Finding the Fourth Proportional to 3,221.55, 4,835.45 and 1,556.85

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Solution

The fourth proportional to 3,221.55, 4,835.45 and 1,556.85 is: 2,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.55 : 4,835.45 = 1,556.85 : x
  2. Step 2: Convert to fraction form
    3,221.55/4,835.45 = 1,556.85/x
  3. Step 3: Cross multiply
    3,221.55x = 4,835.45 × 1,556.85
  4. Step 4: Simplify right side
    3,221.55x = 7,528,070.33
  5. Step 5: Solve for x
    x = 7,528,070.33/3,221.55
  6. Step 6: Final answer
    x = 2,336.79

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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.