Home / 3,280.87-4,918.02-1,331.65

Finding the Fourth Proportional to 3,280.87, 4,918.02 and 1,331.65

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Solution

The fourth proportional to 3,280.87, 4,918.02 and 1,331.65 is: 1,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.87 : 4,918.02 = 1,331.65 : x
  2. Step 2: Convert to fraction form
    3,280.87/4,918.02 = 1,331.65/x
  3. Step 3: Cross multiply
    3,280.87x = 4,918.02 × 1,331.65
  4. Step 4: Simplify right side
    3,280.87x = 6,549,081.33
  5. Step 5: Solve for x
    x = 6,549,081.33/3,280.87
  6. Step 6: Final answer
    x = 1,996.14

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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.