Home / 3,480.63-5,209.65-2,556

Finding the Fourth Proportional to 3,480.63, 5,209.65 and 2,556

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Solution

The fourth proportional to 3,480.63, 5,209.65 and 2,556 is: 3,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.63 : 5,209.65 = 2,556 : x
  2. Step 2: Convert to fraction form
    3,480.63/5,209.65 = 2,556/x
  3. Step 3: Cross multiply
    3,480.63x = 5,209.65 × 2,556
  4. Step 4: Simplify right side
    3,480.63x = 13,315,865.40
  5. Step 5: Solve for x
    x = 13,315,865.40/3,480.63
  6. Step 6: Final answer
    x = 3,825.71

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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.