Home / 3,427.76-5,126.99-2,861.45

Finding the Fourth Proportional to 3,427.76, 5,126.99 and 2,861.45

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Solution

The fourth proportional to 3,427.76, 5,126.99 and 2,861.45 is: 4,279.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.76 : 5,126.99 = 2,861.45 : x
  2. Step 2: Convert to fraction form
    3,427.76/5,126.99 = 2,861.45/x
  3. Step 3: Cross multiply
    3,427.76x = 5,126.99 × 2,861.45
  4. Step 4: Simplify right side
    3,427.76x = 14,670,625.54
  5. Step 5: Solve for x
    x = 14,670,625.54/3,427.76
  6. Step 6: Final answer
    x = 4,279.95

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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.