Home / 2,290.92-3,433.68-828.96

Finding the Fourth Proportional to 2,290.92, 3,433.68 and 828.96

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Solution

The fourth proportional to 2,290.92, 3,433.68 and 828.96 is: 1,242.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.92 : 3,433.68 = 828.96 : x
  2. Step 2: Convert to fraction form
    2,290.92/3,433.68 = 828.96/x
  3. Step 3: Cross multiply
    2,290.92x = 3,433.68 × 828.96
  4. Step 4: Simplify right side
    2,290.92x = 2,846,383.37
  5. Step 5: Solve for x
    x = 2,846,383.37/2,290.92
  6. Step 6: Final answer
    x = 1,242.46

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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.