Home / 7,400.85-11,100.09-2,719.71

Finding the Fourth Proportional to 7,400.85, 11,100.09 and 2,719.71

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Solution

The fourth proportional to 7,400.85, 11,100.09 and 2,719.71 is: 4,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.85 : 11,100.09 = 2,719.71 : x
  2. Step 2: Convert to fraction form
    7,400.85/11,100.09 = 2,719.71/x
  3. Step 3: Cross multiply
    7,400.85x = 11,100.09 × 2,719.71
  4. Step 4: Simplify right side
    7,400.85x = 30,189,025.77
  5. Step 5: Solve for x
    x = 30,189,025.77/7,400.85
  6. Step 6: Final answer
    x = 4,079.13

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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.