Home / 3,391.23-4,678.23-2,272.41

Finding the Fourth Proportional to 3,391.23, 4,678.23 and 2,272.41

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Solution

The fourth proportional to 3,391.23, 4,678.23 and 2,272.41 is: 3,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.23 : 4,678.23 = 2,272.41 : x
  2. Step 2: Convert to fraction form
    3,391.23/4,678.23 = 2,272.41/x
  3. Step 3: Cross multiply
    3,391.23x = 4,678.23 × 2,272.41
  4. Step 4: Simplify right side
    3,391.23x = 10,630,856.63
  5. Step 5: Solve for x
    x = 10,630,856.63/3,391.23
  6. Step 6: Final answer
    x = 3,134.81

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Half scale
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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.