Home / 3,399.03-4,689.81-1,981.83

Finding the Fourth Proportional to 3,399.03, 4,689.81 and 1,981.83

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Solution

The fourth proportional to 3,399.03, 4,689.81 and 1,981.83 is: 2,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.03 : 4,689.81 = 1,981.83 : x
  2. Step 2: Convert to fraction form
    3,399.03/4,689.81 = 1,981.83/x
  3. Step 3: Cross multiply
    3,399.03x = 4,689.81 × 1,981.83
  4. Step 4: Simplify right side
    3,399.03x = 9,294,406.15
  5. Step 5: Solve for x
    x = 9,294,406.15/3,399.03
  6. Step 6: Final answer
    x = 2,734.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.