Home / 3,288.65-4,930.55-1,555.25

Finding the Fourth Proportional to 3,288.65, 4,930.55 and 1,555.25

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Solution

The fourth proportional to 3,288.65, 4,930.55 and 1,555.25 is: 2,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.65 : 4,930.55 = 1,555.25 : x
  2. Step 2: Convert to fraction form
    3,288.65/4,930.55 = 1,555.25/x
  3. Step 3: Cross multiply
    3,288.65x = 4,930.55 × 1,555.25
  4. Step 4: Simplify right side
    3,288.65x = 7,668,230.11
  5. Step 5: Solve for x
    x = 7,668,230.11/3,288.65
  6. Step 6: Final answer
    x = 2,331.73

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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.