Home / 3,580.77-5,369.94-1,388.91

Finding the Fourth Proportional to 3,580.77, 5,369.94 and 1,388.91

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Solution

The fourth proportional to 3,580.77, 5,369.94 and 1,388.91 is: 2,082.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.77 : 5,369.94 = 1,388.91 : x
  2. Step 2: Convert to fraction form
    3,580.77/5,369.94 = 1,388.91/x
  3. Step 3: Cross multiply
    3,580.77x = 5,369.94 × 1,388.91
  4. Step 4: Simplify right side
    3,580.77x = 7,458,363.37
  5. Step 5: Solve for x
    x = 7,458,363.37/3,580.77
  6. Step 6: Final answer
    x = 2,082.89

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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.