Home / 8,790.90-13,186.34-2,217.03

Finding the Fourth Proportional to 8,790.90, 13,186.34 and 2,217.03

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Solution

The fourth proportional to 8,790.90, 13,186.34 and 2,217.03 is: 3,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.90 : 13,186.34 = 2,217.03 : x
  2. Step 2: Convert to fraction form
    8,790.90/13,186.34 = 2,217.03/x
  3. Step 3: Cross multiply
    8,790.90x = 13,186.34 × 2,217.03
  4. Step 4: Simplify right side
    8,790.90x = 29,234,511.37
  5. Step 5: Solve for x
    x = 29,234,511.37/8,790.90
  6. Step 6: Final answer
    x = 3,325.54

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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.