Home / 5,485.80-8,216.55-4,249.20

Finding the Fourth Proportional to 5,485.80, 8,216.55 and 4,249.20

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Solution

The fourth proportional to 5,485.80, 8,216.55 and 4,249.20 is: 6,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.80 : 8,216.55 = 4,249.20 : x
  2. Step 2: Convert to fraction form
    5,485.80/8,216.55 = 4,249.20/x
  3. Step 3: Cross multiply
    5,485.80x = 8,216.55 × 4,249.20
  4. Step 4: Simplify right side
    5,485.80x = 34,913,764.26
  5. Step 5: Solve for x
    x = 34,913,764.26/5,485.80
  6. Step 6: Final answer
    x = 6,364.39

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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.