Home / 4,078.98-6,118.56-1,305.69

Finding the Fourth Proportional to 4,078.98, 6,118.56 and 1,305.69

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Solution

The fourth proportional to 4,078.98, 6,118.56 and 1,305.69 is: 1,958.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.98 : 6,118.56 = 1,305.69 : x
  2. Step 2: Convert to fraction form
    4,078.98/6,118.56 = 1,305.69/x
  3. Step 3: Cross multiply
    4,078.98x = 6,118.56 × 1,305.69
  4. Step 4: Simplify right side
    4,078.98x = 7,988,942.61
  5. Step 5: Solve for x
    x = 7,988,942.61/4,078.98
  6. Step 6: Final answer
    x = 1,958.56

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1.5x scale

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.