Home / 2,847.25-4,268.56-1,911.16

Finding the Fourth Proportional to 2,847.25, 4,268.56 and 1,911.16

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Solution

The fourth proportional to 2,847.25, 4,268.56 and 1,911.16 is: 2,865.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.25 : 4,268.56 = 1,911.16 : x
  2. Step 2: Convert to fraction form
    2,847.25/4,268.56 = 1,911.16/x
  3. Step 3: Cross multiply
    2,847.25x = 4,268.56 × 1,911.16
  4. Step 4: Simplify right side
    2,847.25x = 8,157,901.13
  5. Step 5: Solve for x
    x = 8,157,901.13/2,847.25
  6. Step 6: Final answer
    x = 2,865.19

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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.