Home / 3,103.58-4,655.28-2,640.26

Finding the Fourth Proportional to 3,103.58, 4,655.28 and 2,640.26

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Solution

The fourth proportional to 3,103.58, 4,655.28 and 2,640.26 is: 3,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.58 : 4,655.28 = 2,640.26 : x
  2. Step 2: Convert to fraction form
    3,103.58/4,655.28 = 2,640.26/x
  3. Step 3: Cross multiply
    3,103.58x = 4,655.28 × 2,640.26
  4. Step 4: Simplify right side
    3,103.58x = 12,291,149.57
  5. Step 5: Solve for x
    x = 12,291,149.57/3,103.58
  6. Step 6: Final answer
    x = 3,960.31

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1.5x scale

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.