Home / 2,905.80-4,010.34-1,726.86

Finding the Fourth Proportional to 2,905.80, 4,010.34 and 1,726.86

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Solution

The fourth proportional to 2,905.80, 4,010.34 and 1,726.86 is: 2,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.80 : 4,010.34 = 1,726.86 : x
  2. Step 2: Convert to fraction form
    2,905.80/4,010.34 = 1,726.86/x
  3. Step 3: Cross multiply
    2,905.80x = 4,010.34 × 1,726.86
  4. Step 4: Simplify right side
    2,905.80x = 6,925,295.73
  5. Step 5: Solve for x
    x = 6,925,295.73/2,905.80
  6. Step 6: Final answer
    x = 2,383.27

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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.