Home / 2,905.68-4,009.82-1,579.39

Finding the Fourth Proportional to 2,905.68, 4,009.82 and 1,579.39

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Solution

The fourth proportional to 2,905.68, 4,009.82 and 1,579.39 is: 2,179.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.68 : 4,009.82 = 1,579.39 : x
  2. Step 2: Convert to fraction form
    2,905.68/4,009.82 = 1,579.39/x
  3. Step 3: Cross multiply
    2,905.68x = 4,009.82 × 1,579.39
  4. Step 4: Simplify right side
    2,905.68x = 6,333,058.27
  5. Step 5: Solve for x
    x = 6,333,058.27/2,905.68
  6. Step 6: Final answer
    x = 2,179.54

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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.