Home / 3,720.75-5,585.23-2,162.51

Finding the Fourth Proportional to 3,720.75, 5,585.23 and 2,162.51

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Solution

The fourth proportional to 3,720.75, 5,585.23 and 2,162.51 is: 3,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.75 : 5,585.23 = 2,162.51 : x
  2. Step 2: Convert to fraction form
    3,720.75/5,585.23 = 2,162.51/x
  3. Step 3: Cross multiply
    3,720.75x = 5,585.23 × 2,162.51
  4. Step 4: Simplify right side
    3,720.75x = 12,078,142.87
  5. Step 5: Solve for x
    x = 12,078,142.87/3,720.75
  6. Step 6: Final answer
    x = 3,246.16

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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.