Home / 3,914.30-5,400.60-2,320.22

Finding the Fourth Proportional to 3,914.30, 5,400.60 and 2,320.22

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Solution

The fourth proportional to 3,914.30, 5,400.60 and 2,320.22 is: 3,201.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.30 : 5,400.60 = 2,320.22 : x
  2. Step 2: Convert to fraction form
    3,914.30/5,400.60 = 2,320.22/x
  3. Step 3: Cross multiply
    3,914.30x = 5,400.60 × 2,320.22
  4. Step 4: Simplify right side
    3,914.30x = 12,530,580.13
  5. Step 5: Solve for x
    x = 12,530,580.13/3,914.30
  6. Step 6: Final answer
    x = 3,201.23

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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.