Home / 7,125.12-10,687.74-2,194.80

Finding the Fourth Proportional to 7,125.12, 10,687.74 and 2,194.80

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Solution

The fourth proportional to 7,125.12, 10,687.74 and 2,194.80 is: 3,292.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.12 : 10,687.74 = 2,194.80 : x
  2. Step 2: Convert to fraction form
    7,125.12/10,687.74 = 2,194.80/x
  3. Step 3: Cross multiply
    7,125.12x = 10,687.74 × 2,194.80
  4. Step 4: Simplify right side
    7,125.12x = 23,457,451.75
  5. Step 5: Solve for x
    x = 23,457,451.75/7,125.12
  6. Step 6: Final answer
    x = 3,292.22

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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.