Home / 3,639.34-5,021.99-2,045.90

Finding the Fourth Proportional to 3,639.34, 5,021.99 and 2,045.90

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Solution

The fourth proportional to 3,639.34, 5,021.99 and 2,045.90 is: 2,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.34 : 5,021.99 = 2,045.90 : x
  2. Step 2: Convert to fraction form
    3,639.34/5,021.99 = 2,045.90/x
  3. Step 3: Cross multiply
    3,639.34x = 5,021.99 × 2,045.90
  4. Step 4: Simplify right side
    3,639.34x = 10,274,489.34
  5. Step 5: Solve for x
    x = 10,274,489.34/3,639.34
  6. Step 6: Final answer
    x = 2,823.17

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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.