Home / 2,018.86-3,028.21-632.18

Finding the Fourth Proportional to 2,018.86, 3,028.21 and 632.18

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Solution

The fourth proportional to 2,018.86, 3,028.21 and 632.18 is: 948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.86 : 3,028.21 = 632.18 : x
  2. Step 2: Convert to fraction form
    2,018.86/3,028.21 = 632.18/x
  3. Step 3: Cross multiply
    2,018.86x = 3,028.21 × 632.18
  4. Step 4: Simplify right side
    2,018.86x = 1,914,379.79
  5. Step 5: Solve for x
    x = 1,914,379.79/2,018.86
  6. Step 6: Final answer
    x = 948.25

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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.