Home / 4,880.40-7,318.92-2,106.96

Finding the Fourth Proportional to 4,880.40, 7,318.92 and 2,106.96

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Solution

The fourth proportional to 4,880.40, 7,318.92 and 2,106.96 is: 3,159.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.40 : 7,318.92 = 2,106.96 : x
  2. Step 2: Convert to fraction form
    4,880.40/7,318.92 = 2,106.96/x
  3. Step 3: Cross multiply
    4,880.40x = 7,318.92 × 2,106.96
  4. Step 4: Simplify right side
    4,880.40x = 15,420,671.68
  5. Step 5: Solve for x
    x = 15,420,671.68/4,880.40
  6. Step 6: Final answer
    x = 3,159.71

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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.