Home / 7,919.17-11,880.78-2,372.50

Finding the Fourth Proportional to 7,919.17, 11,880.78 and 2,372.50

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Solution

The fourth proportional to 7,919.17, 11,880.78 and 2,372.50 is: 3,559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.17 : 11,880.78 = 2,372.50 : x
  2. Step 2: Convert to fraction form
    7,919.17/11,880.78 = 2,372.50/x
  3. Step 3: Cross multiply
    7,919.17x = 11,880.78 × 2,372.50
  4. Step 4: Simplify right side
    7,919.17x = 28,187,150.55
  5. Step 5: Solve for x
    x = 28,187,150.55/7,919.17
  6. Step 6: Final answer
    x = 3,559.36

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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.