Home / 4,085.74-6,119.97-3,390.76

Finding the Fourth Proportional to 4,085.74, 6,119.97 and 3,390.76

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Solution

The fourth proportional to 4,085.74, 6,119.97 and 3,390.76 is: 5,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.74 : 6,119.97 = 3,390.76 : x
  2. Step 2: Convert to fraction form
    4,085.74/6,119.97 = 3,390.76/x
  3. Step 3: Cross multiply
    4,085.74x = 6,119.97 × 3,390.76
  4. Step 4: Simplify right side
    4,085.74x = 20,751,349.48
  5. Step 5: Solve for x
    x = 20,751,349.48/4,085.74
  6. Step 6: Final answer
    x = 5,078.97

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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.