Home / 5,120.23-7,063.77-3,228.43

Finding the Fourth Proportional to 5,120.23, 7,063.77 and 3,228.43

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Solution

The fourth proportional to 5,120.23, 7,063.77 and 3,228.43 is: 4,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.23 : 7,063.77 = 3,228.43 : x
  2. Step 2: Convert to fraction form
    5,120.23/7,063.77 = 3,228.43/x
  3. Step 3: Cross multiply
    5,120.23x = 7,063.77 × 3,228.43
  4. Step 4: Simplify right side
    5,120.23x = 22,804,886.98
  5. Step 5: Solve for x
    x = 22,804,886.98/5,120.23
  6. Step 6: Final answer
    x = 4,453.88

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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.