Home / 3,225.80-4,839-1,145.60

Finding the Fourth Proportional to 3,225.80, 4,839 and 1,145.60

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Solution

The fourth proportional to 3,225.80, 4,839 and 1,145.60 is: 1,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.80 : 4,839 = 1,145.60 : x
  2. Step 2: Convert to fraction form
    3,225.80/4,839 = 1,145.60/x
  3. Step 3: Cross multiply
    3,225.80x = 4,839 × 1,145.60
  4. Step 4: Simplify right side
    3,225.80x = 5,543,558.40
  5. Step 5: Solve for x
    x = 5,543,558.40/3,225.80
  6. Step 6: Final answer
    x = 1,718.51

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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.