Home / 3,943.31-5,438.34-3,412.02

Finding the Fourth Proportional to 3,943.31, 5,438.34 and 3,412.02

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Solution

The fourth proportional to 3,943.31, 5,438.34 and 3,412.02 is: 4,705.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.31 : 5,438.34 = 3,412.02 : x
  2. Step 2: Convert to fraction form
    3,943.31/5,438.34 = 3,412.02/x
  3. Step 3: Cross multiply
    3,943.31x = 5,438.34 × 3,412.02
  4. Step 4: Simplify right side
    3,943.31x = 18,555,745.24
  5. Step 5: Solve for x
    x = 18,555,745.24/3,943.31
  6. Step 6: Final answer
    x = 4,705.63

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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.