Home / 4,092.68-6,139.89-1,319.10

Finding the Fourth Proportional to 4,092.68, 6,139.89 and 1,319.10

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Solution

The fourth proportional to 4,092.68, 6,139.89 and 1,319.10 is: 1,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,092.68 : 6,139.89 = 1,319.10 : x
  2. Step 2: Convert to fraction form
    4,092.68/6,139.89 = 1,319.10/x
  3. Step 3: Cross multiply
    4,092.68x = 6,139.89 × 1,319.10
  4. Step 4: Simplify right side
    4,092.68x = 8,099,128.90
  5. Step 5: Solve for x
    x = 8,099,128.90/4,092.68
  6. Step 6: Final answer
    x = 1,978.93

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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.