Home / 3,639.30-5,016.94-2,893.56

Finding the Fourth Proportional to 3,639.30, 5,016.94 and 2,893.56

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Solution

The fourth proportional to 3,639.30, 5,016.94 and 2,893.56 is: 3,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.30 : 5,016.94 = 2,893.56 : x
  2. Step 2: Convert to fraction form
    3,639.30/5,016.94 = 2,893.56/x
  3. Step 3: Cross multiply
    3,639.30x = 5,016.94 × 2,893.56
  4. Step 4: Simplify right side
    3,639.30x = 14,516,809.67
  5. Step 5: Solve for x
    x = 14,516,809.67/3,639.30
  6. Step 6: Final answer
    x = 3,988.90

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1.5x scale

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.