Home / 3,943.36-5,915.36-1,310.77

Finding the Fourth Proportional to 3,943.36, 5,915.36 and 1,310.77

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Solution

The fourth proportional to 3,943.36, 5,915.36 and 1,310.77 is: 1,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.36 : 5,915.36 = 1,310.77 : x
  2. Step 2: Convert to fraction form
    3,943.36/5,915.36 = 1,310.77/x
  3. Step 3: Cross multiply
    3,943.36x = 5,915.36 × 1,310.77
  4. Step 4: Simplify right side
    3,943.36x = 7,753,676.43
  5. Step 5: Solve for x
    x = 7,753,676.43/3,943.36
  6. Step 6: Final answer
    x = 1,966.26

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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.