Home / 3,425.54-5,138.33-1,085.49

Finding the Fourth Proportional to 3,425.54, 5,138.33 and 1,085.49

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Solution

The fourth proportional to 3,425.54, 5,138.33 and 1,085.49 is: 1,628.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.54 : 5,138.33 = 1,085.49 : x
  2. Step 2: Convert to fraction form
    3,425.54/5,138.33 = 1,085.49/x
  3. Step 3: Cross multiply
    3,425.54x = 5,138.33 × 1,085.49
  4. Step 4: Simplify right side
    3,425.54x = 5,577,600.40
  5. Step 5: Solve for x
    x = 5,577,600.40/3,425.54
  6. Step 6: Final answer
    x = 1,628.24

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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.