Home / 2,689.23-3,712.39-1,794.46

Finding the Fourth Proportional to 2,689.23, 3,712.39 and 1,794.46

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Solution

The fourth proportional to 2,689.23, 3,712.39 and 1,794.46 is: 2,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.23 : 3,712.39 = 1,794.46 : x
  2. Step 2: Convert to fraction form
    2,689.23/3,712.39 = 1,794.46/x
  3. Step 3: Cross multiply
    2,689.23x = 3,712.39 × 1,794.46
  4. Step 4: Simplify right side
    2,689.23x = 6,661,735.36
  5. Step 5: Solve for x
    x = 6,661,735.36/2,689.23
  6. Step 6: Final answer
    x = 2,477.19

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1.5x scale

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.