Home / 7,861.08-11,790.30-2,313.78

Finding the Fourth Proportional to 7,861.08, 11,790.30 and 2,313.78

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Solution

The fourth proportional to 7,861.08, 11,790.30 and 2,313.78 is: 3,470.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.08 : 11,790.30 = 2,313.78 : x
  2. Step 2: Convert to fraction form
    7,861.08/11,790.30 = 2,313.78/x
  3. Step 3: Cross multiply
    7,861.08x = 11,790.30 × 2,313.78
  4. Step 4: Simplify right side
    7,861.08x = 27,280,160.33
  5. Step 5: Solve for x
    x = 27,280,160.33/7,861.08
  6. Step 6: Final answer
    x = 3,470.28

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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.