Home / 4,887.91-7,329.12-2,112.85

Finding the Fourth Proportional to 4,887.91, 7,329.12 and 2,112.85

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Solution

The fourth proportional to 4,887.91, 7,329.12 and 2,112.85 is: 3,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.91 : 7,329.12 = 2,112.85 : x
  2. Step 2: Convert to fraction form
    4,887.91/7,329.12 = 2,112.85/x
  3. Step 3: Cross multiply
    4,887.91x = 7,329.12 × 2,112.85
  4. Step 4: Simplify right side
    4,887.91x = 15,485,331.19
  5. Step 5: Solve for x
    x = 15,485,331.19/4,887.91
  6. Step 6: Final answer
    x = 3,168.09

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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.