Home / 3,913.50-5,871.14-1,316.44

Finding the Fourth Proportional to 3,913.50, 5,871.14 and 1,316.44

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Solution

The fourth proportional to 3,913.50, 5,871.14 and 1,316.44 is: 1,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.50 : 5,871.14 = 1,316.44 : x
  2. Step 2: Convert to fraction form
    3,913.50/5,871.14 = 1,316.44/x
  3. Step 3: Cross multiply
    3,913.50x = 5,871.14 × 1,316.44
  4. Step 4: Simplify right side
    3,913.50x = 7,729,003.54
  5. Step 5: Solve for x
    x = 7,729,003.54/3,913.50
  6. Step 6: Final answer
    x = 1,974.96

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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.