Home / 3,396.31-5,094.33-1,991.50

Finding the Fourth Proportional to 3,396.31, 5,094.33 and 1,991.50

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Solution

The fourth proportional to 3,396.31, 5,094.33 and 1,991.50 is: 2,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.31 : 5,094.33 = 1,991.50 : x
  2. Step 2: Convert to fraction form
    3,396.31/5,094.33 = 1,991.50/x
  3. Step 3: Cross multiply
    3,396.31x = 5,094.33 × 1,991.50
  4. Step 4: Simplify right side
    3,396.31x = 10,145,358.20
  5. Step 5: Solve for x
    x = 10,145,358.20/3,396.31
  6. Step 6: Final answer
    x = 2,987.17

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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.