Home / 3,153.86-4,730.78-3,149.30

Finding the Fourth Proportional to 3,153.86, 4,730.78 and 3,149.30

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Solution

The fourth proportional to 3,153.86, 4,730.78 and 3,149.30 is: 4,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.86 : 4,730.78 = 3,149.30 : x
  2. Step 2: Convert to fraction form
    3,153.86/4,730.78 = 3,149.30/x
  3. Step 3: Cross multiply
    3,153.86x = 4,730.78 × 3,149.30
  4. Step 4: Simplify right side
    3,153.86x = 14,898,645.45
  5. Step 5: Solve for x
    x = 14,898,645.45/3,153.86
  6. Step 6: Final answer
    x = 4,723.94

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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.