Home / 3,580.26-5,370.38-1,115.22

Finding the Fourth Proportional to 3,580.26, 5,370.38 and 1,115.22

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Solution

The fourth proportional to 3,580.26, 5,370.38 and 1,115.22 is: 1,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.26 : 5,370.38 = 1,115.22 : x
  2. Step 2: Convert to fraction form
    3,580.26/5,370.38 = 1,115.22/x
  3. Step 3: Cross multiply
    3,580.26x = 5,370.38 × 1,115.22
  4. Step 4: Simplify right side
    3,580.26x = 5,989,155.18
  5. Step 5: Solve for x
    x = 5,989,155.18/3,580.26
  6. Step 6: Final answer
    x = 1,672.83

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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.