Home / 3,343.16-4,609.32-2,279.72

Finding the Fourth Proportional to 3,343.16, 4,609.32 and 2,279.72

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Solution

The fourth proportional to 3,343.16, 4,609.32 and 2,279.72 is: 3,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,343.16 : 4,609.32 = 2,279.72 : x
  2. Step 2: Convert to fraction form
    3,343.16/4,609.32 = 2,279.72/x
  3. Step 3: Cross multiply
    3,343.16x = 4,609.32 × 2,279.72
  4. Step 4: Simplify right side
    3,343.16x = 10,507,958.99
  5. Step 5: Solve for x
    x = 10,507,958.99/3,343.16
  6. Step 6: Final answer
    x = 3,143.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.