Home / 3,131.06-4,698.20-1,377.29

Finding the Fourth Proportional to 3,131.06, 4,698.20 and 1,377.29

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Solution

The fourth proportional to 3,131.06, 4,698.20 and 1,377.29 is: 2,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.06 : 4,698.20 = 1,377.29 : x
  2. Step 2: Convert to fraction form
    3,131.06/4,698.20 = 1,377.29/x
  3. Step 3: Cross multiply
    3,131.06x = 4,698.20 × 1,377.29
  4. Step 4: Simplify right side
    3,131.06x = 6,470,783.88
  5. Step 5: Solve for x
    x = 6,470,783.88/3,131.06
  6. Step 6: Final answer
    x = 2,066.65

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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.