Home / 2,482.30-3,727.32-2,139.49

Finding the Fourth Proportional to 2,482.30, 3,727.32 and 2,139.49

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Solution

The fourth proportional to 2,482.30, 3,727.32 and 2,139.49 is: 3,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.30 : 3,727.32 = 2,139.49 : x
  2. Step 2: Convert to fraction form
    2,482.30/3,727.32 = 2,139.49/x
  3. Step 3: Cross multiply
    2,482.30x = 3,727.32 × 2,139.49
  4. Step 4: Simplify right side
    2,482.30x = 7,974,563.87
  5. Step 5: Solve for x
    x = 7,974,563.87/2,482.30
  6. Step 6: Final answer
    x = 3,212.57

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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.