Home / 4,990.36-7,481.08-2,066.80

Finding the Fourth Proportional to 4,990.36, 7,481.08 and 2,066.80

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Solution

The fourth proportional to 4,990.36, 7,481.08 and 2,066.80 is: 3,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.36 : 7,481.08 = 2,066.80 : x
  2. Step 2: Convert to fraction form
    4,990.36/7,481.08 = 2,066.80/x
  3. Step 3: Cross multiply
    4,990.36x = 7,481.08 × 2,066.80
  4. Step 4: Simplify right side
    4,990.36x = 15,461,896.14
  5. Step 5: Solve for x
    x = 15,461,896.14/4,990.36
  6. Step 6: Final answer
    x = 3,098.35

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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.