Home / 6,081.75-8,391.90-3,429.12

Finding the Fourth Proportional to 6,081.75, 8,391.90 and 3,429.12

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Solution

The fourth proportional to 6,081.75, 8,391.90 and 3,429.12 is: 4,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.75 : 8,391.90 = 3,429.12 : x
  2. Step 2: Convert to fraction form
    6,081.75/8,391.90 = 3,429.12/x
  3. Step 3: Cross multiply
    6,081.75x = 8,391.90 × 3,429.12
  4. Step 4: Simplify right side
    6,081.75x = 28,776,832.13
  5. Step 5: Solve for x
    x = 28,776,832.13/6,081.75
  6. Step 6: Final answer
    x = 4,731.67

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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.