Home / 2,936.40-4,409.40-1,966.80

Finding the Fourth Proportional to 2,936.40, 4,409.40 and 1,966.80

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Solution

The fourth proportional to 2,936.40, 4,409.40 and 1,966.80 is: 2,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.40 : 4,409.40 = 1,966.80 : x
  2. Step 2: Convert to fraction form
    2,936.40/4,409.40 = 1,966.80/x
  3. Step 3: Cross multiply
    2,936.40x = 4,409.40 × 1,966.80
  4. Step 4: Simplify right side
    2,936.40x = 8,672,407.92
  5. Step 5: Solve for x
    x = 8,672,407.92/2,936.40
  6. Step 6: Final answer
    x = 2,953.42

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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.