Home / 3,580.82-5,369.74-1,388.29

Finding the Fourth Proportional to 3,580.82, 5,369.74 and 1,388.29

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Solution

The fourth proportional to 3,580.82, 5,369.74 and 1,388.29 is: 2,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.82 : 5,369.74 = 1,388.29 : x
  2. Step 2: Convert to fraction form
    3,580.82/5,369.74 = 1,388.29/x
  3. Step 3: Cross multiply
    3,580.82x = 5,369.74 × 1,388.29
  4. Step 4: Simplify right side
    3,580.82x = 7,454,756.34
  5. Step 5: Solve for x
    x = 7,454,756.34/3,580.82
  6. Step 6: Final answer
    x = 2,081.86

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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.