Home / 3,115.33-4,679.78-1,883.32

Finding the Fourth Proportional to 3,115.33, 4,679.78 and 1,883.32

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Solution

The fourth proportional to 3,115.33, 4,679.78 and 1,883.32 is: 2,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.33 : 4,679.78 = 1,883.32 : x
  2. Step 2: Convert to fraction form
    3,115.33/4,679.78 = 1,883.32/x
  3. Step 3: Cross multiply
    3,115.33x = 4,679.78 × 1,883.32
  4. Step 4: Simplify right side
    3,115.33x = 8,813,502.15
  5. Step 5: Solve for x
    x = 8,813,502.15/3,115.33
  6. Step 6: Final answer
    x = 2,829.08

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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.