Home / 3,343.40-4,994.78-2,163.80

Finding the Fourth Proportional to 3,343.40, 4,994.78 and 2,163.80

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Solution

The fourth proportional to 3,343.40, 4,994.78 and 2,163.80 is: 3,232.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,343.40 : 4,994.78 = 2,163.80 : x
  2. Step 2: Convert to fraction form
    3,343.40/4,994.78 = 2,163.80/x
  3. Step 3: Cross multiply
    3,343.40x = 4,994.78 × 2,163.80
  4. Step 4: Simplify right side
    3,343.40x = 10,807,669.17
  5. Step 5: Solve for x
    x = 10,807,669.17/3,343.40
  6. Step 6: Final answer
    x = 3,232.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.