Home / 5,177.24-7,144.37-2,819.40

Finding the Fourth Proportional to 5,177.24, 7,144.37 and 2,819.40

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Solution

The fourth proportional to 5,177.24, 7,144.37 and 2,819.40 is: 3,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.24 : 7,144.37 = 2,819.40 : x
  2. Step 2: Convert to fraction form
    5,177.24/7,144.37 = 2,819.40/x
  3. Step 3: Cross multiply
    5,177.24x = 7,144.37 × 2,819.40
  4. Step 4: Simplify right side
    5,177.24x = 20,142,786.96
  5. Step 5: Solve for x
    x = 20,142,786.96/5,177.24
  6. Step 6: Final answer
    x = 3,890.64

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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.