Home / 3,720.97-5,582.67-1,381.18

Finding the Fourth Proportional to 3,720.97, 5,582.67 and 1,381.18

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Solution

The fourth proportional to 3,720.97, 5,582.67 and 1,381.18 is: 2,072.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.97 : 5,582.67 = 1,381.18 : x
  2. Step 2: Convert to fraction form
    3,720.97/5,582.67 = 1,381.18/x
  3. Step 3: Cross multiply
    3,720.97x = 5,582.67 × 1,381.18
  4. Step 4: Simplify right side
    3,720.97x = 7,710,679.10
  5. Step 5: Solve for x
    x = 7,710,679.10/3,720.97
  6. Step 6: Final answer
    x = 2,072.22

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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.