Home / 2,178.36-3,269.70-1,696.68

Finding the Fourth Proportional to 2,178.36, 3,269.70 and 1,696.68

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Solution

The fourth proportional to 2,178.36, 3,269.70 and 1,696.68 is: 2,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.36 : 3,269.70 = 1,696.68 : x
  2. Step 2: Convert to fraction form
    2,178.36/3,269.70 = 1,696.68/x
  3. Step 3: Cross multiply
    2,178.36x = 3,269.70 × 1,696.68
  4. Step 4: Simplify right side
    2,178.36x = 5,547,634.60
  5. Step 5: Solve for x
    x = 5,547,634.60/2,178.36
  6. Step 6: Final answer
    x = 2,546.70

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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.