Home / 2,665.23-3,997.70-1,021.65

Finding the Fourth Proportional to 2,665.23, 3,997.70 and 1,021.65

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Solution

The fourth proportional to 2,665.23, 3,997.70 and 1,021.65 is: 1,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665.23 : 3,997.70 = 1,021.65 : x
  2. Step 2: Convert to fraction form
    2,665.23/3,997.70 = 1,021.65/x
  3. Step 3: Cross multiply
    2,665.23x = 3,997.70 × 1,021.65
  4. Step 4: Simplify right side
    2,665.23x = 4,084,250.21
  5. Step 5: Solve for x
    x = 4,084,250.21/2,665.23
  6. Step 6: Final answer
    x = 1,532.42

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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.