Home / 3,112-4,669.82-1,726.50

Finding the Fourth Proportional to 3,112, 4,669.82 and 1,726.50

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Solution

The fourth proportional to 3,112, 4,669.82 and 1,726.50 is: 2,590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112 : 4,669.82 = 1,726.50 : x
  2. Step 2: Convert to fraction form
    3,112/4,669.82 = 1,726.50/x
  3. Step 3: Cross multiply
    3,112x = 4,669.82 × 1,726.50
  4. Step 4: Simplify right side
    3,112x = 8,062,444.23
  5. Step 5: Solve for x
    x = 8,062,444.23/3,112
  6. Step 6: Final answer
    x = 2,590.76

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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.