Home / 3,988.14-5,982.94-1,214.50

Finding the Fourth Proportional to 3,988.14, 5,982.94 and 1,214.50

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Solution

The fourth proportional to 3,988.14, 5,982.94 and 1,214.50 is: 1,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.14 : 5,982.94 = 1,214.50 : x
  2. Step 2: Convert to fraction form
    3,988.14/5,982.94 = 1,214.50/x
  3. Step 3: Cross multiply
    3,988.14x = 5,982.94 × 1,214.50
  4. Step 4: Simplify right side
    3,988.14x = 7,266,262.64
  5. Step 5: Solve for x
    x = 7,266,262.64/3,988.14
  6. Step 6: Final answer
    x = 1,821.97

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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.