Home / 6,910.08-10,365.78-1,979.58

Finding the Fourth Proportional to 6,910.08, 10,365.78 and 1,979.58

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Solution

The fourth proportional to 6,910.08, 10,365.78 and 1,979.58 is: 2,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.08 : 10,365.78 = 1,979.58 : x
  2. Step 2: Convert to fraction form
    6,910.08/10,365.78 = 1,979.58/x
  3. Step 3: Cross multiply
    6,910.08x = 10,365.78 × 1,979.58
  4. Step 4: Simplify right side
    6,910.08x = 20,519,890.77
  5. Step 5: Solve for x
    x = 20,519,890.77/6,910.08
  6. Step 6: Final answer
    x = 2,969.56

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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.