Home / 5,176.95-7,144.14-2,819.07

Finding the Fourth Proportional to 5,176.95, 7,144.14 and 2,819.07

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Solution

The fourth proportional to 5,176.95, 7,144.14 and 2,819.07 is: 3,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.95 : 7,144.14 = 2,819.07 : x
  2. Step 2: Convert to fraction form
    5,176.95/7,144.14 = 2,819.07/x
  3. Step 3: Cross multiply
    5,176.95x = 7,144.14 × 2,819.07
  4. Step 4: Simplify right side
    5,176.95x = 20,139,830.75
  5. Step 5: Solve for x
    x = 20,139,830.75/5,176.95
  6. Step 6: Final answer
    x = 3,890.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.