Home / 1,983.39-2,975.45-667.04

Finding the Fourth Proportional to 1,983.39, 2,975.45 and 667.04

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Solution

The fourth proportional to 1,983.39, 2,975.45 and 667.04 is: 1,000.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.39 : 2,975.45 = 667.04 : x
  2. Step 2: Convert to fraction form
    1,983.39/2,975.45 = 667.04/x
  3. Step 3: Cross multiply
    1,983.39x = 2,975.45 × 667.04
  4. Step 4: Simplify right side
    1,983.39x = 1,984,725.96
  5. Step 5: Solve for x
    x = 1,984,725.96/1,983.39
  6. Step 6: Final answer
    x = 1,000.67

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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.