Home / 3,907.04-5,391.12-2,581.28

Finding the Fourth Proportional to 3,907.04, 5,391.12 and 2,581.28

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Solution

The fourth proportional to 3,907.04, 5,391.12 and 2,581.28 is: 3,561.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.04 : 5,391.12 = 2,581.28 : x
  2. Step 2: Convert to fraction form
    3,907.04/5,391.12 = 2,581.28/x
  3. Step 3: Cross multiply
    3,907.04x = 5,391.12 × 2,581.28
  4. Step 4: Simplify right side
    3,907.04x = 13,915,990.23
  5. Step 5: Solve for x
    x = 13,915,990.23/3,907.04
  6. Step 6: Final answer
    x = 3,561.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.