Home / 3,722.88-5,580.66-1,381.16

Finding the Fourth Proportional to 3,722.88, 5,580.66 and 1,381.16

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Solution

The fourth proportional to 3,722.88, 5,580.66 and 1,381.16 is: 2,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.88 : 5,580.66 = 1,381.16 : x
  2. Step 2: Convert to fraction form
    3,722.88/5,580.66 = 1,381.16/x
  3. Step 3: Cross multiply
    3,722.88x = 5,580.66 × 1,381.16
  4. Step 4: Simplify right side
    3,722.88x = 7,707,784.37
  5. Step 5: Solve for x
    x = 7,707,784.37/3,722.88
  6. Step 6: Final answer
    x = 2,070.38

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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.