Home / 2,188.59-2,996.09-2,172.96

Finding the Fourth Proportional to 2,188.59, 2,996.09 and 2,172.96

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Solution

The fourth proportional to 2,188.59, 2,996.09 and 2,172.96 is: 2,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.59 : 2,996.09 = 2,172.96 : x
  2. Step 2: Convert to fraction form
    2,188.59/2,996.09 = 2,172.96/x
  3. Step 3: Cross multiply
    2,188.59x = 2,996.09 × 2,172.96
  4. Step 4: Simplify right side
    2,188.59x = 6,510,361.63
  5. Step 5: Solve for x
    x = 6,510,361.63/2,188.59
  6. Step 6: Final answer
    x = 2,974.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.