Home / 7,880.58-11,821.17-2,949.71

Finding the Fourth Proportional to 7,880.58, 11,821.17 and 2,949.71

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Solution

The fourth proportional to 7,880.58, 11,821.17 and 2,949.71 is: 4,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.58 : 11,821.17 = 2,949.71 : x
  2. Step 2: Convert to fraction form
    7,880.58/11,821.17 = 2,949.71/x
  3. Step 3: Cross multiply
    7,880.58x = 11,821.17 × 2,949.71
  4. Step 4: Simplify right side
    7,880.58x = 34,868,964.25
  5. Step 5: Solve for x
    x = 34,868,964.25/7,880.58
  6. Step 6: Final answer
    x = 4,424.67

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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.