Home / 2,612.32-3,917.60-1,637.28

Finding the Fourth Proportional to 2,612.32, 3,917.60 and 1,637.28

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Solution

The fourth proportional to 2,612.32, 3,917.60 and 1,637.28 is: 2,455.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.32 : 3,917.60 = 1,637.28 : x
  2. Step 2: Convert to fraction form
    2,612.32/3,917.60 = 1,637.28/x
  3. Step 3: Cross multiply
    2,612.32x = 3,917.60 × 1,637.28
  4. Step 4: Simplify right side
    2,612.32x = 6,414,208.13
  5. Step 5: Solve for x
    x = 6,414,208.13/2,612.32
  6. Step 6: Final answer
    x = 2,455.37

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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.