Home / 3,109.34-4,664.82-1,377.56

Finding the Fourth Proportional to 3,109.34, 4,664.82 and 1,377.56

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Solution

The fourth proportional to 3,109.34, 4,664.82 and 1,377.56 is: 2,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.34 : 4,664.82 = 1,377.56 : x
  2. Step 2: Convert to fraction form
    3,109.34/4,664.82 = 1,377.56/x
  3. Step 3: Cross multiply
    3,109.34x = 4,664.82 × 1,377.56
  4. Step 4: Simplify right side
    3,109.34x = 6,426,069.44
  5. Step 5: Solve for x
    x = 6,426,069.44/3,109.34
  6. Step 6: Final answer
    x = 2,066.70

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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.