Home / 2,166.24-2,989.43-1,234.80

Finding the Fourth Proportional to 2,166.24, 2,989.43 and 1,234.80

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Solution

The fourth proportional to 2,166.24, 2,989.43 and 1,234.80 is: 1,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.24 : 2,989.43 = 1,234.80 : x
  2. Step 2: Convert to fraction form
    2,166.24/2,989.43 = 1,234.80/x
  3. Step 3: Cross multiply
    2,166.24x = 2,989.43 × 1,234.80
  4. Step 4: Simplify right side
    2,166.24x = 3,691,348.16
  5. Step 5: Solve for x
    x = 3,691,348.16/2,166.24
  6. Step 6: Final answer
    x = 1,704.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.