Home / 2,173.47-3,261.11-1,393.89

Finding the Fourth Proportional to 2,173.47, 3,261.11 and 1,393.89

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Solution

The fourth proportional to 2,173.47, 3,261.11 and 1,393.89 is: 2,091.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.47 : 3,261.11 = 1,393.89 : x
  2. Step 2: Convert to fraction form
    2,173.47/3,261.11 = 1,393.89/x
  3. Step 3: Cross multiply
    2,173.47x = 3,261.11 × 1,393.89
  4. Step 4: Simplify right side
    2,173.47x = 4,545,628.62
  5. Step 5: Solve for x
    x = 4,545,628.62/2,173.47
  6. Step 6: Final answer
    x = 2,091.42

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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.