Home / 6,861.15-10,287.86-2,180.30

Finding the Fourth Proportional to 6,861.15, 10,287.86 and 2,180.30

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Solution

The fourth proportional to 6,861.15, 10,287.86 and 2,180.30 is: 3,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.15 : 10,287.86 = 2,180.30 : x
  2. Step 2: Convert to fraction form
    6,861.15/10,287.86 = 2,180.30/x
  3. Step 3: Cross multiply
    6,861.15x = 10,287.86 × 2,180.30
  4. Step 4: Simplify right side
    6,861.15x = 22,430,558.82
  5. Step 5: Solve for x
    x = 22,430,558.82/6,861.15
  6. Step 6: Final answer
    x = 3,269.21

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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.