Home / 3,518.40-4,855.20-2,733.12

Finding the Fourth Proportional to 3,518.40, 4,855.20 and 2,733.12

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Solution

The fourth proportional to 3,518.40, 4,855.20 and 2,733.12 is: 3,771.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.40 : 4,855.20 = 2,733.12 : x
  2. Step 2: Convert to fraction form
    3,518.40/4,855.20 = 2,733.12/x
  3. Step 3: Cross multiply
    3,518.40x = 4,855.20 × 2,733.12
  4. Step 4: Simplify right side
    3,518.40x = 13,269,844.22
  5. Step 5: Solve for x
    x = 13,269,844.22/3,518.40
  6. Step 6: Final answer
    x = 3,771.56

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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.