Home / 3,007.37-4,142.46-2,121.62

Finding the Fourth Proportional to 3,007.37, 4,142.46 and 2,121.62

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Solution

The fourth proportional to 3,007.37, 4,142.46 and 2,121.62 is: 2,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.37 : 4,142.46 = 2,121.62 : x
  2. Step 2: Convert to fraction form
    3,007.37/4,142.46 = 2,121.62/x
  3. Step 3: Cross multiply
    3,007.37x = 4,142.46 × 2,121.62
  4. Step 4: Simplify right side
    3,007.37x = 8,788,725.99
  5. Step 5: Solve for x
    x = 8,788,725.99/3,007.37
  6. Step 6: Final answer
    x = 2,922.40

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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.