Home / 2,154.39-3,228.84-2,110.65

Finding the Fourth Proportional to 2,154.39, 3,228.84 and 2,110.65

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Solution

The fourth proportional to 2,154.39, 3,228.84 and 2,110.65 is: 3,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.39 : 3,228.84 = 2,110.65 : x
  2. Step 2: Convert to fraction form
    2,154.39/3,228.84 = 2,110.65/x
  3. Step 3: Cross multiply
    2,154.39x = 3,228.84 × 2,110.65
  4. Step 4: Simplify right side
    2,154.39x = 6,814,951.15
  5. Step 5: Solve for x
    x = 6,814,951.15/2,154.39
  6. Step 6: Final answer
    x = 3,163.29

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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.