Home / 2,646.09-3,964.82-1,669.05

Finding the Fourth Proportional to 2,646.09, 3,964.82 and 1,669.05

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Solution

The fourth proportional to 2,646.09, 3,964.82 and 1,669.05 is: 2,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.09 : 3,964.82 = 1,669.05 : x
  2. Step 2: Convert to fraction form
    2,646.09/3,964.82 = 1,669.05/x
  3. Step 3: Cross multiply
    2,646.09x = 3,964.82 × 1,669.05
  4. Step 4: Simplify right side
    2,646.09x = 6,617,474.48
  5. Step 5: Solve for x
    x = 6,617,474.48/2,646.09
  6. Step 6: Final answer
    x = 2,500.85

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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.