Home / 3,433.80-5,138.37-2,973.15

Finding the Fourth Proportional to 3,433.80, 5,138.37 and 2,973.15

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Solution

The fourth proportional to 3,433.80, 5,138.37 and 2,973.15 is: 4,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.80 : 5,138.37 = 2,973.15 : x
  2. Step 2: Convert to fraction form
    3,433.80/5,138.37 = 2,973.15/x
  3. Step 3: Cross multiply
    3,433.80x = 5,138.37 × 2,973.15
  4. Step 4: Simplify right side
    3,433.80x = 15,277,144.77
  5. Step 5: Solve for x
    x = 15,277,144.77/3,433.80
  6. Step 6: Final answer
    x = 4,449.05

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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.