Home / 3,988.04-5,982.80-1,214.96

Finding the Fourth Proportional to 3,988.04, 5,982.80 and 1,214.96

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Solution

The fourth proportional to 3,988.04, 5,982.80 and 1,214.96 is: 1,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.04 : 5,982.80 = 1,214.96 : x
  2. Step 2: Convert to fraction form
    3,988.04/5,982.80 = 1,214.96/x
  3. Step 3: Cross multiply
    3,988.04x = 5,982.80 × 1,214.96
  4. Step 4: Simplify right side
    3,988.04x = 7,268,862.69
  5. Step 5: Solve for x
    x = 7,268,862.69/3,988.04
  6. Step 6: Final answer
    x = 1,822.67

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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.