Home / 7,919.44-11,875.74-3,175

Finding the Fourth Proportional to 7,919.44, 11,875.74 and 3,175

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Solution

The fourth proportional to 7,919.44, 11,875.74 and 3,175 is: 4,761.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.44 : 11,875.74 = 3,175 : x
  2. Step 2: Convert to fraction form
    7,919.44/11,875.74 = 3,175/x
  3. Step 3: Cross multiply
    7,919.44x = 11,875.74 × 3,175
  4. Step 4: Simplify right side
    7,919.44x = 37,705,474.50
  5. Step 5: Solve for x
    x = 37,705,474.50/7,919.44
  6. Step 6: Final answer
    x = 4,761.13

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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.