Home / 2,645.22-3,965-1,182.36

Finding the Fourth Proportional to 2,645.22, 3,965 and 1,182.36

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Solution

The fourth proportional to 2,645.22, 3,965 and 1,182.36 is: 1,772.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.22 : 3,965 = 1,182.36 : x
  2. Step 2: Convert to fraction form
    2,645.22/3,965 = 1,182.36/x
  3. Step 3: Cross multiply
    2,645.22x = 3,965 × 1,182.36
  4. Step 4: Simplify right side
    2,645.22x = 4,688,057.40
  5. Step 5: Solve for x
    x = 4,688,057.40/2,645.22
  6. Step 6: Final answer
    x = 1,772.28

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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.