Home / 3,983.54-5,975.58-1,386.68

Finding the Fourth Proportional to 3,983.54, 5,975.58 and 1,386.68

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Solution

The fourth proportional to 3,983.54, 5,975.58 and 1,386.68 is: 2,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.54 : 5,975.58 = 1,386.68 : x
  2. Step 2: Convert to fraction form
    3,983.54/5,975.58 = 1,386.68/x
  3. Step 3: Cross multiply
    3,983.54x = 5,975.58 × 1,386.68
  4. Step 4: Simplify right side
    3,983.54x = 8,286,217.27
  5. Step 5: Solve for x
    x = 8,286,217.27/3,983.54
  6. Step 6: Final answer
    x = 2,080.11

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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.