Home / 5,725.12-8,589.60-3,530.80

Finding the Fourth Proportional to 5,725.12, 8,589.60 and 3,530.80

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Solution

The fourth proportional to 5,725.12, 8,589.60 and 3,530.80 is: 5,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,725.12 : 8,589.60 = 3,530.80 : x
  2. Step 2: Convert to fraction form
    5,725.12/8,589.60 = 3,530.80/x
  3. Step 3: Cross multiply
    5,725.12x = 8,589.60 × 3,530.80
  4. Step 4: Simplify right side
    5,725.12x = 30,328,159.68
  5. Step 5: Solve for x
    x = 30,328,159.68/5,725.12
  6. Step 6: Final answer
    x = 5,297.38

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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.