Home / 7,090.46-9,785.25-4,107.23

Finding the Fourth Proportional to 7,090.46, 9,785.25 and 4,107.23

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Solution

The fourth proportional to 7,090.46, 9,785.25 and 4,107.23 is: 5,668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.46 : 9,785.25 = 4,107.23 : x
  2. Step 2: Convert to fraction form
    7,090.46/9,785.25 = 4,107.23/x
  3. Step 3: Cross multiply
    7,090.46x = 9,785.25 × 4,107.23
  4. Step 4: Simplify right side
    7,090.46x = 40,190,223.43
  5. Step 5: Solve for x
    x = 40,190,223.43/7,090.46
  6. Step 6: Final answer
    x = 5,668.22

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Half scale
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Find fourth proportional to 7,091.46, 9,786.63 and 4,108.23
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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.