Home / 5,812.82-8,720.58-1,917.26

Finding the Fourth Proportional to 5,812.82, 8,720.58 and 1,917.26

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Solution

The fourth proportional to 5,812.82, 8,720.58 and 1,917.26 is: 2,876.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.82 : 8,720.58 = 1,917.26 : x
  2. Step 2: Convert to fraction form
    5,812.82/8,720.58 = 1,917.26/x
  3. Step 3: Cross multiply
    5,812.82x = 8,720.58 × 1,917.26
  4. Step 4: Simplify right side
    5,812.82x = 16,719,619.21
  5. Step 5: Solve for x
    x = 16,719,619.21/5,812.82
  6. Step 6: Final answer
    x = 2,876.34

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1.5x scale

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.