Home / 4,990.12-7,485.24-2,392.48

Finding the Fourth Proportional to 4,990.12, 7,485.24 and 2,392.48

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Solution

The fourth proportional to 4,990.12, 7,485.24 and 2,392.48 is: 3,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.12 : 7,485.24 = 2,392.48 : x
  2. Step 2: Convert to fraction form
    4,990.12/7,485.24 = 2,392.48/x
  3. Step 3: Cross multiply
    4,990.12x = 7,485.24 × 2,392.48
  4. Step 4: Simplify right side
    4,990.12x = 17,908,287.00
  5. Step 5: Solve for x
    x = 17,908,287.00/4,990.12
  6. Step 6: Final answer
    x = 3,588.75

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Half scale
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Double scale
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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.