Home / 3,916.58-5,875.14-1,321.34

Finding the Fourth Proportional to 3,916.58, 5,875.14 and 1,321.34

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Solution

The fourth proportional to 3,916.58, 5,875.14 and 1,321.34 is: 1,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.58 : 5,875.14 = 1,321.34 : x
  2. Step 2: Convert to fraction form
    3,916.58/5,875.14 = 1,321.34/x
  3. Step 3: Cross multiply
    3,916.58x = 5,875.14 × 1,321.34
  4. Step 4: Simplify right side
    3,916.58x = 7,763,057.49
  5. Step 5: Solve for x
    x = 7,763,057.49/3,916.58
  6. Step 6: Final answer
    x = 1,982.10

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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.