Home / 2,896.83-3,997.60-1,638.13

Finding the Fourth Proportional to 2,896.83, 3,997.60 and 1,638.13

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Solution

The fourth proportional to 2,896.83, 3,997.60 and 1,638.13 is: 2,260.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,896.83 : 3,997.60 = 1,638.13 : x
  2. Step 2: Convert to fraction form
    2,896.83/3,997.60 = 1,638.13/x
  3. Step 3: Cross multiply
    2,896.83x = 3,997.60 × 1,638.13
  4. Step 4: Simplify right side
    2,896.83x = 6,548,612.51
  5. Step 5: Solve for x
    x = 6,548,612.51/2,896.83
  6. Step 6: Final answer
    x = 2,260.61

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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.