Home / 3,230.45-4,453.52-2,168.40

Finding the Fourth Proportional to 3,230.45, 4,453.52 and 2,168.40

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Solution

The fourth proportional to 3,230.45, 4,453.52 and 2,168.40 is: 2,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.45 : 4,453.52 = 2,168.40 : x
  2. Step 2: Convert to fraction form
    3,230.45/4,453.52 = 2,168.40/x
  3. Step 3: Cross multiply
    3,230.45x = 4,453.52 × 2,168.40
  4. Step 4: Simplify right side
    3,230.45x = 9,657,001.93
  5. Step 5: Solve for x
    x = 9,657,001.93/3,230.45
  6. Step 6: Final answer
    x = 2,989.37

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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.