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Finding the Fourth Proportional to 2,007.91, 3,011.59 and 622.20

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Solution

The fourth proportional to 2,007.91, 3,011.59 and 622.20 is: 933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.91 : 3,011.59 = 622.20 : x
  2. Step 2: Convert to fraction form
    2,007.91/3,011.59 = 622.20/x
  3. Step 3: Cross multiply
    2,007.91x = 3,011.59 × 622.20
  4. Step 4: Simplify right side
    2,007.91x = 1,873,811.30
  5. Step 5: Solve for x
    x = 1,873,811.30/2,007.91
  6. Step 6: Final answer
    x = 933.21

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1.5x scale

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.