Home / 3,988.41-5,980.61-1,214.43

Finding the Fourth Proportional to 3,988.41, 5,980.61 and 1,214.43

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Solution

The fourth proportional to 3,988.41, 5,980.61 and 1,214.43 is: 1,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.41 : 5,980.61 = 1,214.43 : x
  2. Step 2: Convert to fraction form
    3,988.41/5,980.61 = 1,214.43/x
  3. Step 3: Cross multiply
    3,988.41x = 5,980.61 × 1,214.43
  4. Step 4: Simplify right side
    3,988.41x = 7,263,026.13
  5. Step 5: Solve for x
    x = 7,263,026.13/3,988.41
  6. Step 6: Final answer
    x = 1,821.03

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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.