Home / 4,861.40-7,291.79-2,520.70

Finding the Fourth Proportional to 4,861.40, 7,291.79 and 2,520.70

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Solution

The fourth proportional to 4,861.40, 7,291.79 and 2,520.70 is: 3,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,861.40 : 7,291.79 = 2,520.70 : x
  2. Step 2: Convert to fraction form
    4,861.40/7,291.79 = 2,520.70/x
  3. Step 3: Cross multiply
    4,861.40x = 7,291.79 × 2,520.70
  4. Step 4: Simplify right side
    4,861.40x = 18,380,365.99
  5. Step 5: Solve for x
    x = 18,380,365.99/4,861.40
  6. Step 6: Final answer
    x = 3,780.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.