Home / 4,230.80-6,342-2,144.60

Finding the Fourth Proportional to 4,230.80, 6,342 and 2,144.60

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Solution

The fourth proportional to 4,230.80, 6,342 and 2,144.60 is: 3,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230.80 : 6,342 = 2,144.60 : x
  2. Step 2: Convert to fraction form
    4,230.80/6,342 = 2,144.60/x
  3. Step 3: Cross multiply
    4,230.80x = 6,342 × 2,144.60
  4. Step 4: Simplify right side
    4,230.80x = 13,601,053.20
  5. Step 5: Solve for x
    x = 13,601,053.20/4,230.80
  6. Step 6: Final answer
    x = 3,214.77

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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.