Home / 2,689.26-3,711.24-1,745.46

Finding the Fourth Proportional to 2,689.26, 3,711.24 and 1,745.46

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Solution

The fourth proportional to 2,689.26, 3,711.24 and 1,745.46 is: 2,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.26 : 3,711.24 = 1,745.46 : x
  2. Step 2: Convert to fraction form
    2,689.26/3,711.24 = 1,745.46/x
  3. Step 3: Cross multiply
    2,689.26x = 3,711.24 × 1,745.46
  4. Step 4: Simplify right side
    2,689.26x = 6,477,820.97
  5. Step 5: Solve for x
    x = 6,477,820.97/2,689.26
  6. Step 6: Final answer
    x = 2,408.77

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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.