Home / 2,285.14-3,427.68-553.78

Finding the Fourth Proportional to 2,285.14, 3,427.68 and 553.78

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Solution

The fourth proportional to 2,285.14, 3,427.68 and 553.78 is: 830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.14 : 3,427.68 = 553.78 : x
  2. Step 2: Convert to fraction form
    2,285.14/3,427.68 = 553.78/x
  3. Step 3: Cross multiply
    2,285.14x = 3,427.68 × 553.78
  4. Step 4: Simplify right side
    2,285.14x = 1,898,180.63
  5. Step 5: Solve for x
    x = 1,898,180.63/2,285.14
  6. Step 6: Final answer
    x = 830.66

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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.