Home / 4,780.25-7,171.19-1,492.69

Finding the Fourth Proportional to 4,780.25, 7,171.19 and 1,492.69

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Solution

The fourth proportional to 4,780.25, 7,171.19 and 1,492.69 is: 2,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.25 : 7,171.19 = 1,492.69 : x
  2. Step 2: Convert to fraction form
    4,780.25/7,171.19 = 1,492.69/x
  3. Step 3: Cross multiply
    4,780.25x = 7,171.19 × 1,492.69
  4. Step 4: Simplify right side
    4,780.25x = 10,704,356.14
  5. Step 5: Solve for x
    x = 10,704,356.14/4,780.25
  6. Step 6: Final answer
    x = 2,239.29

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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.