Home / 3,078.44-4,252.74-2,663.72

Finding the Fourth Proportional to 3,078.44, 4,252.74 and 2,663.72

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Solution

The fourth proportional to 3,078.44, 4,252.74 and 2,663.72 is: 3,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.44 : 4,252.74 = 2,663.72 : x
  2. Step 2: Convert to fraction form
    3,078.44/4,252.74 = 2,663.72/x
  3. Step 3: Cross multiply
    3,078.44x = 4,252.74 × 2,663.72
  4. Step 4: Simplify right side
    3,078.44x = 11,328,108.59
  5. Step 5: Solve for x
    x = 11,328,108.59/3,078.44
  6. Step 6: Final answer
    x = 3,679.82

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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.