Home / 4,078.60-6,112.32-2,977.82

Finding the Fourth Proportional to 4,078.60, 6,112.32 and 2,977.82

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Solution

The fourth proportional to 4,078.60, 6,112.32 and 2,977.82 is: 4,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.60 : 6,112.32 = 2,977.82 : x
  2. Step 2: Convert to fraction form
    4,078.60/6,112.32 = 2,977.82/x
  3. Step 3: Cross multiply
    4,078.60x = 6,112.32 × 2,977.82
  4. Step 4: Simplify right side
    4,078.60x = 18,201,388.74
  5. Step 5: Solve for x
    x = 18,201,388.74/4,078.60
  6. Step 6: Final answer
    x = 4,462.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.