Home / 2,980.65-4,470.97-1,226.60

Finding the Fourth Proportional to 2,980.65, 4,470.97 and 1,226.60

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Solution

The fourth proportional to 2,980.65, 4,470.97 and 1,226.60 is: 1,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.65 : 4,470.97 = 1,226.60 : x
  2. Step 2: Convert to fraction form
    2,980.65/4,470.97 = 1,226.60/x
  3. Step 3: Cross multiply
    2,980.65x = 4,470.97 × 1,226.60
  4. Step 4: Simplify right side
    2,980.65x = 5,484,108.30
  5. Step 5: Solve for x
    x = 5,484,108.30/2,980.65
  6. Step 6: Final answer
    x = 1,839.91

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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.