Home / 7,211.10-10,816.61-3,880.92

Finding the Fourth Proportional to 7,211.10, 10,816.61 and 3,880.92

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Solution

The fourth proportional to 7,211.10, 10,816.61 and 3,880.92 is: 5,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.10 : 10,816.61 = 3,880.92 : x
  2. Step 2: Convert to fraction form
    7,211.10/10,816.61 = 3,880.92/x
  3. Step 3: Cross multiply
    7,211.10x = 10,816.61 × 3,880.92
  4. Step 4: Simplify right side
    7,211.10x = 41,978,324.59
  5. Step 5: Solve for x
    x = 41,978,324.59/7,211.10
  6. Step 6: Final answer
    x = 5,821.35

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1.5x scale

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.