Home / 1,780.37-2,670.23-481.94

Finding the Fourth Proportional to 1,780.37, 2,670.23 and 481.94

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Solution

The fourth proportional to 1,780.37, 2,670.23 and 481.94 is: 722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.37 : 2,670.23 = 481.94 : x
  2. Step 2: Convert to fraction form
    1,780.37/2,670.23 = 481.94/x
  3. Step 3: Cross multiply
    1,780.37x = 2,670.23 × 481.94
  4. Step 4: Simplify right side
    1,780.37x = 1,286,877.30
  5. Step 5: Solve for x
    x = 1,286,877.30/1,780.37
  6. Step 6: Final answer
    x = 722.82

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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.