Home / 3,007.24-4,145.70-2,120.32

Finding the Fourth Proportional to 3,007.24, 4,145.70 and 2,120.32

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Solution

The fourth proportional to 3,007.24, 4,145.70 and 2,120.32 is: 2,923.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.24 : 4,145.70 = 2,120.32 : x
  2. Step 2: Convert to fraction form
    3,007.24/4,145.70 = 2,120.32/x
  3. Step 3: Cross multiply
    3,007.24x = 4,145.70 × 2,120.32
  4. Step 4: Simplify right side
    3,007.24x = 8,790,210.62
  5. Step 5: Solve for x
    x = 8,790,210.62/3,007.24
  6. Step 6: Final answer
    x = 2,923.02

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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.