Home / 3,419.47-4,738.36-3,211.39

Finding the Fourth Proportional to 3,419.47, 4,738.36 and 3,211.39

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Solution

The fourth proportional to 3,419.47, 4,738.36 and 3,211.39 is: 4,450.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.47 : 4,738.36 = 3,211.39 : x
  2. Step 2: Convert to fraction form
    3,419.47/4,738.36 = 3,211.39/x
  3. Step 3: Cross multiply
    3,419.47x = 4,738.36 × 3,211.39
  4. Step 4: Simplify right side
    3,419.47x = 15,216,721.92
  5. Step 5: Solve for x
    x = 15,216,721.92/3,419.47
  6. Step 6: Final answer
    x = 4,450.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.