Home / 6,139.26-9,208.08-1,979.70

Finding the Fourth Proportional to 6,139.26, 9,208.08 and 1,979.70

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Solution

The fourth proportional to 6,139.26, 9,208.08 and 1,979.70 is: 2,969.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.26 : 9,208.08 = 1,979.70 : x
  2. Step 2: Convert to fraction form
    6,139.26/9,208.08 = 1,979.70/x
  3. Step 3: Cross multiply
    6,139.26x = 9,208.08 × 1,979.70
  4. Step 4: Simplify right side
    6,139.26x = 18,229,235.98
  5. Step 5: Solve for x
    x = 18,229,235.98/6,139.26
  6. Step 6: Final answer
    x = 2,969.29

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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.