Home / 6,761.36-10,139.38-2,809.98

Finding the Fourth Proportional to 6,761.36, 10,139.38 and 2,809.98

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Solution

The fourth proportional to 6,761.36, 10,139.38 and 2,809.98 is: 4,213.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.36 : 10,139.38 = 2,809.98 : x
  2. Step 2: Convert to fraction form
    6,761.36/10,139.38 = 2,809.98/x
  3. Step 3: Cross multiply
    6,761.36x = 10,139.38 × 2,809.98
  4. Step 4: Simplify right side
    6,761.36x = 28,491,447.99
  5. Step 5: Solve for x
    x = 28,491,447.99/6,761.36
  6. Step 6: Final answer
    x = 4,213.86

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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.