Home / 5,105.52-7,059.42-4,869

Finding the Fourth Proportional to 5,105.52, 7,059.42 and 4,869

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Solution

The fourth proportional to 5,105.52, 7,059.42 and 4,869 is: 6,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.52 : 7,059.42 = 4,869 : x
  2. Step 2: Convert to fraction form
    5,105.52/7,059.42 = 4,869/x
  3. Step 3: Cross multiply
    5,105.52x = 7,059.42 × 4,869
  4. Step 4: Simplify right side
    5,105.52x = 34,372,315.98
  5. Step 5: Solve for x
    x = 34,372,315.98/5,105.52
  6. Step 6: Final answer
    x = 6,732.38

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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.