Home / 8,290.45-12,431.40-2,446.30

Finding the Fourth Proportional to 8,290.45, 12,431.40 and 2,446.30

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Solution

The fourth proportional to 8,290.45, 12,431.40 and 2,446.30 is: 3,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.45 : 12,431.40 = 2,446.30 : x
  2. Step 2: Convert to fraction form
    8,290.45/12,431.40 = 2,446.30/x
  3. Step 3: Cross multiply
    8,290.45x = 12,431.40 × 2,446.30
  4. Step 4: Simplify right side
    8,290.45x = 30,410,933.82
  5. Step 5: Solve for x
    x = 30,410,933.82/8,290.45
  6. Step 6: Final answer
    x = 3,668.19

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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.