Home / 2,997.19-4,129.95-2,890.27

Finding the Fourth Proportional to 2,997.19, 4,129.95 and 2,890.27

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Solution

The fourth proportional to 2,997.19, 4,129.95 and 2,890.27 is: 3,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.19 : 4,129.95 = 2,890.27 : x
  2. Step 2: Convert to fraction form
    2,997.19/4,129.95 = 2,890.27/x
  3. Step 3: Cross multiply
    2,997.19x = 4,129.95 × 2,890.27
  4. Step 4: Simplify right side
    2,997.19x = 11,936,670.59
  5. Step 5: Solve for x
    x = 11,936,670.59/2,997.19
  6. Step 6: Final answer
    x = 3,982.62

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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.