Home / 3,928.40-5,891.23-1,738.67

Finding the Fourth Proportional to 3,928.40, 5,891.23 and 1,738.67

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Solution

The fourth proportional to 3,928.40, 5,891.23 and 1,738.67 is: 2,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.40 : 5,891.23 = 1,738.67 : x
  2. Step 2: Convert to fraction form
    3,928.40/5,891.23 = 1,738.67/x
  3. Step 3: Cross multiply
    3,928.40x = 5,891.23 × 1,738.67
  4. Step 4: Simplify right side
    3,928.40x = 10,242,877.58
  5. Step 5: Solve for x
    x = 10,242,877.58/3,928.40
  6. Step 6: Final answer
    x = 2,607.39

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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.