Home / 4,949.82-7,424.64-1,989.56

Finding the Fourth Proportional to 4,949.82, 7,424.64 and 1,989.56

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Solution

The fourth proportional to 4,949.82, 7,424.64 and 1,989.56 is: 2,984.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.82 : 7,424.64 = 1,989.56 : x
  2. Step 2: Convert to fraction form
    4,949.82/7,424.64 = 1,989.56/x
  3. Step 3: Cross multiply
    4,949.82x = 7,424.64 × 1,989.56
  4. Step 4: Simplify right side
    4,949.82x = 14,771,785.32
  5. Step 5: Solve for x
    x = 14,771,785.32/4,949.82
  6. Step 6: Final answer
    x = 2,984.31

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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.