Home / 3,048.35-4,208.78-1,930.28

Finding the Fourth Proportional to 3,048.35, 4,208.78 and 1,930.28

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Solution

The fourth proportional to 3,048.35, 4,208.78 and 1,930.28 is: 2,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.35 : 4,208.78 = 1,930.28 : x
  2. Step 2: Convert to fraction form
    3,048.35/4,208.78 = 1,930.28/x
  3. Step 3: Cross multiply
    3,048.35x = 4,208.78 × 1,930.28
  4. Step 4: Simplify right side
    3,048.35x = 8,124,107.64
  5. Step 5: Solve for x
    x = 8,124,107.64/3,048.35
  6. Step 6: Final answer
    x = 2,665.09

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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.