Home / 3,298.63-4,550.21-2,179.75

Finding the Fourth Proportional to 3,298.63, 4,550.21 and 2,179.75

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Solution

The fourth proportional to 3,298.63, 4,550.21 and 2,179.75 is: 3,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.63 : 4,550.21 = 2,179.75 : x
  2. Step 2: Convert to fraction form
    3,298.63/4,550.21 = 2,179.75/x
  3. Step 3: Cross multiply
    3,298.63x = 4,550.21 × 2,179.75
  4. Step 4: Simplify right side
    3,298.63x = 9,918,320.25
  5. Step 5: Solve for x
    x = 9,918,320.25/3,298.63
  6. Step 6: Final answer
    x = 3,006.80

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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.