Home / 3,211.88-4,816.95-1,103.48

Finding the Fourth Proportional to 3,211.88, 4,816.95 and 1,103.48

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Solution

The fourth proportional to 3,211.88, 4,816.95 and 1,103.48 is: 1,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.88 : 4,816.95 = 1,103.48 : x
  2. Step 2: Convert to fraction form
    3,211.88/4,816.95 = 1,103.48/x
  3. Step 3: Cross multiply
    3,211.88x = 4,816.95 × 1,103.48
  4. Step 4: Simplify right side
    3,211.88x = 5,315,383.90
  5. Step 5: Solve for x
    x = 5,315,383.90/3,211.88
  6. Step 6: Final answer
    x = 1,654.92

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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.