Home / 5,487.44-8,231.80-3,435.60

Finding the Fourth Proportional to 5,487.44, 8,231.80 and 3,435.60

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Solution

The fourth proportional to 5,487.44, 8,231.80 and 3,435.60 is: 5,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.44 : 8,231.80 = 3,435.60 : x
  2. Step 2: Convert to fraction form
    5,487.44/8,231.80 = 3,435.60/x
  3. Step 3: Cross multiply
    5,487.44x = 8,231.80 × 3,435.60
  4. Step 4: Simplify right side
    5,487.44x = 28,281,172.08
  5. Step 5: Solve for x
    x = 28,281,172.08/5,487.44
  6. Step 6: Final answer
    x = 5,153.80

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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.