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Finding the Fourth Proportional to 2,009.98, 3,015.24 and 623.42

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Solution

The fourth proportional to 2,009.98, 3,015.24 and 623.42 is: 935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.98 : 3,015.24 = 623.42 : x
  2. Step 2: Convert to fraction form
    2,009.98/3,015.24 = 623.42/x
  3. Step 3: Cross multiply
    2,009.98x = 3,015.24 × 623.42
  4. Step 4: Simplify right side
    2,009.98x = 1,879,760.92
  5. Step 5: Solve for x
    x = 1,879,760.92/2,009.98
  6. Step 6: Final answer
    x = 935.21

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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.