Home / 2,645.10-3,966.06-1,396.69

Finding the Fourth Proportional to 2,645.10, 3,966.06 and 1,396.69

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Solution

The fourth proportional to 2,645.10, 3,966.06 and 1,396.69 is: 2,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.10 : 3,966.06 = 1,396.69 : x
  2. Step 2: Convert to fraction form
    2,645.10/3,966.06 = 1,396.69/x
  3. Step 3: Cross multiply
    2,645.10x = 3,966.06 × 1,396.69
  4. Step 4: Simplify right side
    2,645.10x = 5,539,339.44
  5. Step 5: Solve for x
    x = 5,539,339.44/2,645.10
  6. Step 6: Final answer
    x = 2,094.19

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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.