Home / 3,975.40-5,962.87-1,342.79

Finding the Fourth Proportional to 3,975.40, 5,962.87 and 1,342.79

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Solution

The fourth proportional to 3,975.40, 5,962.87 and 1,342.79 is: 2,014.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.40 : 5,962.87 = 1,342.79 : x
  2. Step 2: Convert to fraction form
    3,975.40/5,962.87 = 1,342.79/x
  3. Step 3: Cross multiply
    3,975.40x = 5,962.87 × 1,342.79
  4. Step 4: Simplify right side
    3,975.40x = 8,006,902.42
  5. Step 5: Solve for x
    x = 8,006,902.42/3,975.40
  6. Step 6: Final answer
    x = 2,014.11

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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.