Home / 7,861.15-11,790.78-2,017.36

Finding the Fourth Proportional to 7,861.15, 11,790.78 and 2,017.36

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Solution

The fourth proportional to 7,861.15, 11,790.78 and 2,017.36 is: 3,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.15 : 11,790.78 = 2,017.36 : x
  2. Step 2: Convert to fraction form
    7,861.15/11,790.78 = 2,017.36/x
  3. Step 3: Cross multiply
    7,861.15x = 11,790.78 × 2,017.36
  4. Step 4: Simplify right side
    7,861.15x = 23,786,247.94
  5. Step 5: Solve for x
    x = 23,786,247.94/7,861.15
  6. Step 6: Final answer
    x = 3,025.80

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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.