Home / 3,985.28-5,971.27-2,813.36

Finding the Fourth Proportional to 3,985.28, 5,971.27 and 2,813.36

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Solution

The fourth proportional to 3,985.28, 5,971.27 and 2,813.36 is: 4,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.28 : 5,971.27 = 2,813.36 : x
  2. Step 2: Convert to fraction form
    3,985.28/5,971.27 = 2,813.36/x
  3. Step 3: Cross multiply
    3,985.28x = 5,971.27 × 2,813.36
  4. Step 4: Simplify right side
    3,985.28x = 16,799,340.06
  5. Step 5: Solve for x
    x = 16,799,340.06/3,985.28
  6. Step 6: Final answer
    x = 4,215.34

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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.