Home / 3,912.13-5,398.36-2,210.55

Finding the Fourth Proportional to 3,912.13, 5,398.36 and 2,210.55

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Solution

The fourth proportional to 3,912.13, 5,398.36 and 2,210.55 is: 3,050.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.13 : 5,398.36 = 2,210.55 : x
  2. Step 2: Convert to fraction form
    3,912.13/5,398.36 = 2,210.55/x
  3. Step 3: Cross multiply
    3,912.13x = 5,398.36 × 2,210.55
  4. Step 4: Simplify right side
    3,912.13x = 11,933,344.70
  5. Step 5: Solve for x
    x = 11,933,344.70/3,912.13
  6. Step 6: Final answer
    x = 3,050.34

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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.