Home / 2,178.35-3,267.37-946.65

Finding the Fourth Proportional to 2,178.35, 3,267.37 and 946.65

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Solution

The fourth proportional to 2,178.35, 3,267.37 and 946.65 is: 1,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.35 : 3,267.37 = 946.65 : x
  2. Step 2: Convert to fraction form
    2,178.35/3,267.37 = 946.65/x
  3. Step 3: Cross multiply
    2,178.35x = 3,267.37 × 946.65
  4. Step 4: Simplify right side
    2,178.35x = 3,093,055.81
  5. Step 5: Solve for x
    x = 3,093,055.81/2,178.35
  6. Step 6: Final answer
    x = 1,419.91

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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.