Home / 2,659.18-3,669.86-1,664.30

Finding the Fourth Proportional to 2,659.18, 3,669.86 and 1,664.30

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Solution

The fourth proportional to 2,659.18, 3,669.86 and 1,664.30 is: 2,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.18 : 3,669.86 = 1,664.30 : x
  2. Step 2: Convert to fraction form
    2,659.18/3,669.86 = 1,664.30/x
  3. Step 3: Cross multiply
    2,659.18x = 3,669.86 × 1,664.30
  4. Step 4: Simplify right side
    2,659.18x = 6,107,731.33
  5. Step 5: Solve for x
    x = 6,107,731.33/2,659.18
  6. Step 6: Final answer
    x = 2,296.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.