Home / 3,982.65-5,973.98-1,209.08

Finding the Fourth Proportional to 3,982.65, 5,973.98 and 1,209.08

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Solution

The fourth proportional to 3,982.65, 5,973.98 and 1,209.08 is: 1,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.65 : 5,973.98 = 1,209.08 : x
  2. Step 2: Convert to fraction form
    3,982.65/5,973.98 = 1,209.08/x
  3. Step 3: Cross multiply
    3,982.65x = 5,973.98 × 1,209.08
  4. Step 4: Simplify right side
    3,982.65x = 7,222,983.82
  5. Step 5: Solve for x
    x = 7,222,983.82/3,982.65
  6. Step 6: Final answer
    x = 1,813.61

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Similar ratio
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1.5x scale

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.