Home / 2,153.39-3,227.34-2,109.65

Finding the Fourth Proportional to 2,153.39, 3,227.34 and 2,109.65

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Solution

The fourth proportional to 2,153.39, 3,227.34 and 2,109.65 is: 3,161.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.39 : 3,227.34 = 2,109.65 : x
  2. Step 2: Convert to fraction form
    2,153.39/3,227.34 = 2,109.65/x
  3. Step 3: Cross multiply
    2,153.39x = 3,227.34 × 2,109.65
  4. Step 4: Simplify right side
    2,153.39x = 6,808,549.61
  5. Step 5: Solve for x
    x = 6,808,549.61/2,153.39
  6. Step 6: Final answer
    x = 3,161.79

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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.