Home / 3,280.55-4,526.82-2,021.40

Finding the Fourth Proportional to 3,280.55, 4,526.82 and 2,021.40

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Solution

The fourth proportional to 3,280.55, 4,526.82 and 2,021.40 is: 2,789.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.55 : 4,526.82 = 2,021.40 : x
  2. Step 2: Convert to fraction form
    3,280.55/4,526.82 = 2,021.40/x
  3. Step 3: Cross multiply
    3,280.55x = 4,526.82 × 2,021.40
  4. Step 4: Simplify right side
    3,280.55x = 9,150,513.95
  5. Step 5: Solve for x
    x = 9,150,513.95/3,280.55
  6. Step 6: Final answer
    x = 2,789.33

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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.