Home / 1,935.70-2,676.46-1,689.68

Finding the Fourth Proportional to 1,935.70, 2,676.46 and 1,689.68

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Solution

The fourth proportional to 1,935.70, 2,676.46 and 1,689.68 is: 2,336.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.70 : 2,676.46 = 1,689.68 : x
  2. Step 2: Convert to fraction form
    1,935.70/2,676.46 = 1,689.68/x
  3. Step 3: Cross multiply
    1,935.70x = 2,676.46 × 1,689.68
  4. Step 4: Simplify right side
    1,935.70x = 4,522,360.93
  5. Step 5: Solve for x
    x = 4,522,360.93/1,935.70
  6. Step 6: Final answer
    x = 2,336.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.