Home / 2,018.20-3,026.53-785.46

Finding the Fourth Proportional to 2,018.20, 3,026.53 and 785.46

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Solution

The fourth proportional to 2,018.20, 3,026.53 and 785.46 is: 1,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.20 : 3,026.53 = 785.46 : x
  2. Step 2: Convert to fraction form
    2,018.20/3,026.53 = 785.46/x
  3. Step 3: Cross multiply
    2,018.20x = 3,026.53 × 785.46
  4. Step 4: Simplify right side
    2,018.20x = 2,377,218.25
  5. Step 5: Solve for x
    x = 2,377,218.25/2,018.20
  6. Step 6: Final answer
    x = 1,177.89

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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.