Home / 4,748.76-7,120.90-2,774.96

Finding the Fourth Proportional to 4,748.76, 7,120.90 and 2,774.96

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Solution

The fourth proportional to 4,748.76, 7,120.90 and 2,774.96 is: 4,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.76 : 7,120.90 = 2,774.96 : x
  2. Step 2: Convert to fraction form
    4,748.76/7,120.90 = 2,774.96/x
  3. Step 3: Cross multiply
    4,748.76x = 7,120.90 × 2,774.96
  4. Step 4: Simplify right side
    4,748.76x = 19,760,169.73
  5. Step 5: Solve for x
    x = 19,760,169.73/4,748.76
  6. Step 6: Final answer
    x = 4,161.13

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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.