Home / 3,988.03-5,982.96-1,215.10

Finding the Fourth Proportional to 3,988.03, 5,982.96 and 1,215.10

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Solution

The fourth proportional to 3,988.03, 5,982.96 and 1,215.10 is: 1,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.03 : 5,982.96 = 1,215.10 : x
  2. Step 2: Convert to fraction form
    3,988.03/5,982.96 = 1,215.10/x
  3. Step 3: Cross multiply
    3,988.03x = 5,982.96 × 1,215.10
  4. Step 4: Simplify right side
    3,988.03x = 7,269,894.70
  5. Step 5: Solve for x
    x = 7,269,894.70/3,988.03
  6. Step 6: Final answer
    x = 1,822.93

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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.