Home / 2,765.50-3,819.10-2,364.85

Finding the Fourth Proportional to 2,765.50, 3,819.10 and 2,364.85

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Solution

The fourth proportional to 2,765.50, 3,819.10 and 2,364.85 is: 3,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.50 : 3,819.10 = 2,364.85 : x
  2. Step 2: Convert to fraction form
    2,765.50/3,819.10 = 2,364.85/x
  3. Step 3: Cross multiply
    2,765.50x = 3,819.10 × 2,364.85
  4. Step 4: Simplify right side
    2,765.50x = 9,031,580.45
  5. Step 5: Solve for x
    x = 9,031,580.45/2,765.50
  6. Step 6: Final answer
    x = 3,265.80

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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.