Home / 3,207.15-4,810.86-1,905.75

Finding the Fourth Proportional to 3,207.15, 4,810.86 and 1,905.75

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Solution

The fourth proportional to 3,207.15, 4,810.86 and 1,905.75 is: 2,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.15 : 4,810.86 = 1,905.75 : x
  2. Step 2: Convert to fraction form
    3,207.15/4,810.86 = 1,905.75/x
  3. Step 3: Cross multiply
    3,207.15x = 4,810.86 × 1,905.75
  4. Step 4: Simplify right side
    3,207.15x = 9,168,296.45
  5. Step 5: Solve for x
    x = 9,168,296.45/3,207.15
  6. Step 6: Final answer
    x = 2,858.71

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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.