Home / 4,990.21-7,485.36-2,392.54

Finding the Fourth Proportional to 4,990.21, 7,485.36 and 2,392.54

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Solution

The fourth proportional to 4,990.21, 7,485.36 and 2,392.54 is: 3,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.21 : 7,485.36 = 2,392.54 : x
  2. Step 2: Convert to fraction form
    4,990.21/7,485.36 = 2,392.54/x
  3. Step 3: Cross multiply
    4,990.21x = 7,485.36 × 2,392.54
  4. Step 4: Simplify right side
    4,990.21x = 17,909,023.21
  5. Step 5: Solve for x
    x = 17,909,023.21/4,990.21
  6. Step 6: Final answer
    x = 3,588.83

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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.