Home / 5,427.80-8,129.04-4,185.32

Finding the Fourth Proportional to 5,427.80, 8,129.04 and 4,185.32

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Solution

The fourth proportional to 5,427.80, 8,129.04 and 4,185.32 is: 6,268.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.80 : 8,129.04 = 4,185.32 : x
  2. Step 2: Convert to fraction form
    5,427.80/8,129.04 = 4,185.32/x
  3. Step 3: Cross multiply
    5,427.80x = 8,129.04 × 4,185.32
  4. Step 4: Simplify right side
    5,427.80x = 34,022,633.69
  5. Step 5: Solve for x
    x = 34,022,633.69/5,427.80
  6. Step 6: Final answer
    x = 6,268.22

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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.