Home / 4,092.26-6,139.37-1,319.20

Finding the Fourth Proportional to 4,092.26, 6,139.37 and 1,319.20

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Solution

The fourth proportional to 4,092.26, 6,139.37 and 1,319.20 is: 1,979.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,092.26 : 6,139.37 = 1,319.20 : x
  2. Step 2: Convert to fraction form
    4,092.26/6,139.37 = 1,319.20/x
  3. Step 3: Cross multiply
    4,092.26x = 6,139.37 × 1,319.20
  4. Step 4: Simplify right side
    4,092.26x = 8,099,056.90
  5. Step 5: Solve for x
    x = 8,099,056.90/4,092.26
  6. Step 6: Final answer
    x = 1,979.12

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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.