Home / 2,163.84-3,245.76-1,190.40

Finding the Fourth Proportional to 2,163.84, 3,245.76 and 1,190.40

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Solution

The fourth proportional to 2,163.84, 3,245.76 and 1,190.40 is: 1,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.84 : 3,245.76 = 1,190.40 : x
  2. Step 2: Convert to fraction form
    2,163.84/3,245.76 = 1,190.40/x
  3. Step 3: Cross multiply
    2,163.84x = 3,245.76 × 1,190.40
  4. Step 4: Simplify right side
    2,163.84x = 3,863,752.70
  5. Step 5: Solve for x
    x = 3,863,752.70/2,163.84
  6. Step 6: Final answer
    x = 1,785.60

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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.