Home / 2,806.20-4,208.27-1,636.61

Finding the Fourth Proportional to 2,806.20, 4,208.27 and 1,636.61

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Solution

The fourth proportional to 2,806.20, 4,208.27 and 1,636.61 is: 2,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.20 : 4,208.27 = 1,636.61 : x
  2. Step 2: Convert to fraction form
    2,806.20/4,208.27 = 1,636.61/x
  3. Step 3: Cross multiply
    2,806.20x = 4,208.27 × 1,636.61
  4. Step 4: Simplify right side
    2,806.20x = 6,887,267.54
  5. Step 5: Solve for x
    x = 6,887,267.54/2,806.20
  6. Step 6: Final answer
    x = 2,454.30

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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.