Home / 3,389.44-4,674.72-2,145.28

Finding the Fourth Proportional to 3,389.44, 4,674.72 and 2,145.28

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Solution

The fourth proportional to 3,389.44, 4,674.72 and 2,145.28 is: 2,958.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.44 : 4,674.72 = 2,145.28 : x
  2. Step 2: Convert to fraction form
    3,389.44/4,674.72 = 2,145.28/x
  3. Step 3: Cross multiply
    3,389.44x = 4,674.72 × 2,145.28
  4. Step 4: Simplify right side
    3,389.44x = 10,028,583.32
  5. Step 5: Solve for x
    x = 10,028,583.32/3,389.44
  6. Step 6: Final answer
    x = 2,958.77

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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.