Home / 2,809.19-4,212.14-1,163.76

Finding the Fourth Proportional to 2,809.19, 4,212.14 and 1,163.76

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Solution

The fourth proportional to 2,809.19, 4,212.14 and 1,163.76 is: 1,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.19 : 4,212.14 = 1,163.76 : x
  2. Step 2: Convert to fraction form
    2,809.19/4,212.14 = 1,163.76/x
  3. Step 3: Cross multiply
    2,809.19x = 4,212.14 × 1,163.76
  4. Step 4: Simplify right side
    2,809.19x = 4,901,914.23
  5. Step 5: Solve for x
    x = 4,901,914.23/2,809.19
  6. Step 6: Final answer
    x = 1,744.96

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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.