Home / 3,879.32-5,353.30-2,110.94

Finding the Fourth Proportional to 3,879.32, 5,353.30 and 2,110.94

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Solution

The fourth proportional to 3,879.32, 5,353.30 and 2,110.94 is: 2,913.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.32 : 5,353.30 = 2,110.94 : x
  2. Step 2: Convert to fraction form
    3,879.32/5,353.30 = 2,110.94/x
  3. Step 3: Cross multiply
    3,879.32x = 5,353.30 × 2,110.94
  4. Step 4: Simplify right side
    3,879.32x = 11,300,495.10
  5. Step 5: Solve for x
    x = 11,300,495.10/3,879.32
  6. Step 6: Final answer
    x = 2,913.01

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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.