Home / 3,580.81-5,371.25-1,115.57

Finding the Fourth Proportional to 3,580.81, 5,371.25 and 1,115.57

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Solution

The fourth proportional to 3,580.81, 5,371.25 and 1,115.57 is: 1,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.81 : 5,371.25 = 1,115.57 : x
  2. Step 2: Convert to fraction form
    3,580.81/5,371.25 = 1,115.57/x
  3. Step 3: Cross multiply
    3,580.81x = 5,371.25 × 1,115.57
  4. Step 4: Simplify right side
    3,580.81x = 5,992,013.21
  5. Step 5: Solve for x
    x = 5,992,013.21/3,580.81
  6. Step 6: Final answer
    x = 1,673.37

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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.