Home / 3,911.04-5,867.43-1,689.90

Finding the Fourth Proportional to 3,911.04, 5,867.43 and 1,689.90

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Solution

The fourth proportional to 3,911.04, 5,867.43 and 1,689.90 is: 2,535.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.04 : 5,867.43 = 1,689.90 : x
  2. Step 2: Convert to fraction form
    3,911.04/5,867.43 = 1,689.90/x
  3. Step 3: Cross multiply
    3,911.04x = 5,867.43 × 1,689.90
  4. Step 4: Simplify right side
    3,911.04x = 9,915,369.96
  5. Step 5: Solve for x
    x = 9,915,369.96/3,911.04
  6. Step 6: Final answer
    x = 2,535.23

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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.