Home / 6,836.05-10,255.44-2,156.78

Finding the Fourth Proportional to 6,836.05, 10,255.44 and 2,156.78

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Solution

The fourth proportional to 6,836.05, 10,255.44 and 2,156.78 is: 3,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,836.05 : 10,255.44 = 2,156.78 : x
  2. Step 2: Convert to fraction form
    6,836.05/10,255.44 = 2,156.78/x
  3. Step 3: Cross multiply
    6,836.05x = 10,255.44 × 2,156.78
  4. Step 4: Simplify right side
    6,836.05x = 22,118,703.92
  5. Step 5: Solve for x
    x = 22,118,703.92/6,836.05
  6. Step 6: Final answer
    x = 3,235.60

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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.