Home / 5,177.34-7,144.74-2,819.49

Finding the Fourth Proportional to 5,177.34, 7,144.74 and 2,819.49

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Solution

The fourth proportional to 5,177.34, 7,144.74 and 2,819.49 is: 3,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.34 : 7,144.74 = 2,819.49 : x
  2. Step 2: Convert to fraction form
    5,177.34/7,144.74 = 2,819.49/x
  3. Step 3: Cross multiply
    5,177.34x = 7,144.74 × 2,819.49
  4. Step 4: Simplify right side
    5,177.34x = 20,144,522.98
  5. Step 5: Solve for x
    x = 20,144,522.98/5,177.34
  6. Step 6: Final answer
    x = 3,890.90

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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.