Home / 5,177.37-7,144.73-2,819.55

Finding the Fourth Proportional to 5,177.37, 7,144.73 and 2,819.55

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Solution

The fourth proportional to 5,177.37, 7,144.73 and 2,819.55 is: 3,890.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.37 : 7,144.73 = 2,819.55 : x
  2. Step 2: Convert to fraction form
    5,177.37/7,144.73 = 2,819.55/x
  3. Step 3: Cross multiply
    5,177.37x = 7,144.73 × 2,819.55
  4. Step 4: Simplify right side
    5,177.37x = 20,144,927.24
  5. Step 5: Solve for x
    x = 20,144,927.24/5,177.37
  6. Step 6: Final answer
    x = 3,890.96

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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.