Home / 3,389.44-4,678.20-2,208.48

Finding the Fourth Proportional to 3,389.44, 4,678.20 and 2,208.48

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Solution

The fourth proportional to 3,389.44, 4,678.20 and 2,208.48 is: 3,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.44 : 4,678.20 = 2,208.48 : x
  2. Step 2: Convert to fraction form
    3,389.44/4,678.20 = 2,208.48/x
  3. Step 3: Cross multiply
    3,389.44x = 4,678.20 × 2,208.48
  4. Step 4: Simplify right side
    3,389.44x = 10,331,711.14
  5. Step 5: Solve for x
    x = 10,331,711.14/3,389.44
  6. Step 6: Final answer
    x = 3,048.21

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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.