Home / 3,163.86-4,364.89-2,045.45

Finding the Fourth Proportional to 3,163.86, 4,364.89 and 2,045.45

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Solution

The fourth proportional to 3,163.86, 4,364.89 and 2,045.45 is: 2,821.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.86 : 4,364.89 = 2,045.45 : x
  2. Step 2: Convert to fraction form
    3,163.86/4,364.89 = 2,045.45/x
  3. Step 3: Cross multiply
    3,163.86x = 4,364.89 × 2,045.45
  4. Step 4: Simplify right side
    3,163.86x = 8,928,170.05
  5. Step 5: Solve for x
    x = 8,928,170.05/3,163.86
  6. Step 6: Final answer
    x = 2,821.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.