Home / 4,485.45-6,721.99-2,289.59

Finding the Fourth Proportional to 4,485.45, 6,721.99 and 2,289.59

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Solution

The fourth proportional to 4,485.45, 6,721.99 and 2,289.59 is: 3,431.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.45 : 6,721.99 = 2,289.59 : x
  2. Step 2: Convert to fraction form
    4,485.45/6,721.99 = 2,289.59/x
  3. Step 3: Cross multiply
    4,485.45x = 6,721.99 × 2,289.59
  4. Step 4: Simplify right side
    4,485.45x = 15,390,601.08
  5. Step 5: Solve for x
    x = 15,390,601.08/4,485.45
  6. Step 6: Final answer
    x = 3,431.23

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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.