Home / 2,805.36-3,871.56-1,610.43

Finding the Fourth Proportional to 2,805.36, 3,871.56 and 1,610.43

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Solution

The fourth proportional to 2,805.36, 3,871.56 and 1,610.43 is: 2,222.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.36 : 3,871.56 = 1,610.43 : x
  2. Step 2: Convert to fraction form
    2,805.36/3,871.56 = 1,610.43/x
  3. Step 3: Cross multiply
    2,805.36x = 3,871.56 × 1,610.43
  4. Step 4: Simplify right side
    2,805.36x = 6,234,876.37
  5. Step 5: Solve for x
    x = 6,234,876.37/2,805.36
  6. Step 6: Final answer
    x = 2,222.49

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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.