Home / 2,012.10-3,018.12-551.25

Finding the Fourth Proportional to 2,012.10, 3,018.12 and 551.25

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Solution

The fourth proportional to 2,012.10, 3,018.12 and 551.25 is: 826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.10 : 3,018.12 = 551.25 : x
  2. Step 2: Convert to fraction form
    2,012.10/3,018.12 = 551.25/x
  3. Step 3: Cross multiply
    2,012.10x = 3,018.12 × 551.25
  4. Step 4: Simplify right side
    2,012.10x = 1,663,738.65
  5. Step 5: Solve for x
    x = 1,663,738.65/2,012.10
  6. Step 6: Final answer
    x = 826.87

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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.