Home / 6,861.03-10,290.72-2,912.85

Finding the Fourth Proportional to 6,861.03, 10,290.72 and 2,912.85

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Solution

The fourth proportional to 6,861.03, 10,290.72 and 2,912.85 is: 4,368.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.03 : 10,290.72 = 2,912.85 : x
  2. Step 2: Convert to fraction form
    6,861.03/10,290.72 = 2,912.85/x
  3. Step 3: Cross multiply
    6,861.03x = 10,290.72 × 2,912.85
  4. Step 4: Simplify right side
    6,861.03x = 29,975,323.75
  5. Step 5: Solve for x
    x = 29,975,323.75/6,861.03
  6. Step 6: Final answer
    x = 4,368.92

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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.