Home / 3,481.19-4,803.72-1,989.10

Finding the Fourth Proportional to 3,481.19, 4,803.72 and 1,989.10

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Solution

The fourth proportional to 3,481.19, 4,803.72 and 1,989.10 is: 2,744.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.19 : 4,803.72 = 1,989.10 : x
  2. Step 2: Convert to fraction form
    3,481.19/4,803.72 = 1,989.10/x
  3. Step 3: Cross multiply
    3,481.19x = 4,803.72 × 1,989.10
  4. Step 4: Simplify right side
    3,481.19x = 9,555,055.43
  5. Step 5: Solve for x
    x = 9,555,055.43/3,481.19
  6. Step 6: Final answer
    x = 2,744.77

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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.