Home / 2,928.94-4,395.14-1,081.36

Finding the Fourth Proportional to 2,928.94, 4,395.14 and 1,081.36

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Solution

The fourth proportional to 2,928.94, 4,395.14 and 1,081.36 is: 1,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.94 : 4,395.14 = 1,081.36 : x
  2. Step 2: Convert to fraction form
    2,928.94/4,395.14 = 1,081.36/x
  3. Step 3: Cross multiply
    2,928.94x = 4,395.14 × 1,081.36
  4. Step 4: Simplify right side
    2,928.94x = 4,752,701.21
  5. Step 5: Solve for x
    x = 4,752,701.21/2,928.94
  6. Step 6: Final answer
    x = 1,622.67

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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.