Home / 3,982.55-5,973.65-1,209.16

Finding the Fourth Proportional to 3,982.55, 5,973.65 and 1,209.16

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Solution

The fourth proportional to 3,982.55, 5,973.65 and 1,209.16 is: 1,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.55 : 5,973.65 = 1,209.16 : x
  2. Step 2: Convert to fraction form
    3,982.55/5,973.65 = 1,209.16/x
  3. Step 3: Cross multiply
    3,982.55x = 5,973.65 × 1,209.16
  4. Step 4: Simplify right side
    3,982.55x = 7,223,098.63
  5. Step 5: Solve for x
    x = 7,223,098.63/3,982.55
  6. Step 6: Final answer
    x = 1,813.69

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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.