Home / 5,177.09-7,144.16-2,819.23

Finding the Fourth Proportional to 5,177.09, 7,144.16 and 2,819.23

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Solution

The fourth proportional to 5,177.09, 7,144.16 and 2,819.23 is: 3,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.09 : 7,144.16 = 2,819.23 : x
  2. Step 2: Convert to fraction form
    5,177.09/7,144.16 = 2,819.23/x
  3. Step 3: Cross multiply
    5,177.09x = 7,144.16 × 2,819.23
  4. Step 4: Simplify right side
    5,177.09x = 20,140,998.24
  5. Step 5: Solve for x
    x = 20,140,998.24/5,177.09
  6. Step 6: Final answer
    x = 3,890.41

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1.5x scale

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.