Home / 6,639.46-9,954.58-2,939.70

Finding the Fourth Proportional to 6,639.46, 9,954.58 and 2,939.70

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Solution

The fourth proportional to 6,639.46, 9,954.58 and 2,939.70 is: 4,407.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.46 : 9,954.58 = 2,939.70 : x
  2. Step 2: Convert to fraction form
    6,639.46/9,954.58 = 2,939.70/x
  3. Step 3: Cross multiply
    6,639.46x = 9,954.58 × 2,939.70
  4. Step 4: Simplify right side
    6,639.46x = 29,263,478.83
  5. Step 5: Solve for x
    x = 29,263,478.83/6,639.46
  6. Step 6: Final answer
    x = 4,407.51

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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.