Home / 7,621.26-11,431.92-3,242.40

Finding the Fourth Proportional to 7,621.26, 11,431.92 and 3,242.40

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Solution

The fourth proportional to 7,621.26, 11,431.92 and 3,242.40 is: 4,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.26 : 11,431.92 = 3,242.40 : x
  2. Step 2: Convert to fraction form
    7,621.26/11,431.92 = 3,242.40/x
  3. Step 3: Cross multiply
    7,621.26x = 11,431.92 × 3,242.40
  4. Step 4: Simplify right side
    7,621.26x = 37,066,857.41
  5. Step 5: Solve for x
    x = 37,066,857.41/7,621.26
  6. Step 6: Final answer
    x = 4,863.61

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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.