Home / 3,518.63-4,855.19-2,989.64

Finding the Fourth Proportional to 3,518.63, 4,855.19 and 2,989.64

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Solution

The fourth proportional to 3,518.63, 4,855.19 and 2,989.64 is: 4,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.63 : 4,855.19 = 2,989.64 : x
  2. Step 2: Convert to fraction form
    3,518.63/4,855.19 = 2,989.64/x
  3. Step 3: Cross multiply
    3,518.63x = 4,855.19 × 2,989.64
  4. Step 4: Simplify right side
    3,518.63x = 14,515,231.01
  5. Step 5: Solve for x
    x = 14,515,231.01/3,518.63
  6. Step 6: Final answer
    x = 4,125.26

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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.