Home / 3,980.03-5,967.75-1,641.65

Finding the Fourth Proportional to 3,980.03, 5,967.75 and 1,641.65

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Solution

The fourth proportional to 3,980.03, 5,967.75 and 1,641.65 is: 2,461.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.03 : 5,967.75 = 1,641.65 : x
  2. Step 2: Convert to fraction form
    3,980.03/5,967.75 = 1,641.65/x
  3. Step 3: Cross multiply
    3,980.03x = 5,967.75 × 1,641.65
  4. Step 4: Simplify right side
    3,980.03x = 9,796,926.95
  5. Step 5: Solve for x
    x = 9,796,926.95/3,980.03
  6. Step 6: Final answer
    x = 2,461.52

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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.