Home / 7,078.86-10,619.30-2,400.21

Finding the Fourth Proportional to 7,078.86, 10,619.30 and 2,400.21

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Solution

The fourth proportional to 7,078.86, 10,619.30 and 2,400.21 is: 3,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.86 : 10,619.30 = 2,400.21 : x
  2. Step 2: Convert to fraction form
    7,078.86/10,619.30 = 2,400.21/x
  3. Step 3: Cross multiply
    7,078.86x = 10,619.30 × 2,400.21
  4. Step 4: Simplify right side
    7,078.86x = 25,488,550.05
  5. Step 5: Solve for x
    x = 25,488,550.05/7,078.86
  6. Step 6: Final answer
    x = 3,600.66

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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.