Home / 1,845.24-2,768.88-979.52

Finding the Fourth Proportional to 1,845.24, 2,768.88 and 979.52

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Solution

The fourth proportional to 1,845.24, 2,768.88 and 979.52 is: 1,469.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.24 : 2,768.88 = 979.52 : x
  2. Step 2: Convert to fraction form
    1,845.24/2,768.88 = 979.52/x
  3. Step 3: Cross multiply
    1,845.24x = 2,768.88 × 979.52
  4. Step 4: Simplify right side
    1,845.24x = 2,712,173.34
  5. Step 5: Solve for x
    x = 2,712,173.34/1,845.24
  6. Step 6: Final answer
    x = 1,469.82

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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.