Home / 6,225.60-9,336-2,121.60

Finding the Fourth Proportional to 6,225.60, 9,336 and 2,121.60

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Solution

The fourth proportional to 6,225.60, 9,336 and 2,121.60 is: 3,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,225.60 : 9,336 = 2,121.60 : x
  2. Step 2: Convert to fraction form
    6,225.60/9,336 = 2,121.60/x
  3. Step 3: Cross multiply
    6,225.60x = 9,336 × 2,121.60
  4. Step 4: Simplify right side
    6,225.60x = 19,807,257.60
  5. Step 5: Solve for x
    x = 19,807,257.60/6,225.60
  6. Step 6: Final answer
    x = 3,181.58

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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.