Home / 2,653.20-3,985.92-1,669.08

Finding the Fourth Proportional to 2,653.20, 3,985.92 and 1,669.08

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Solution

The fourth proportional to 2,653.20, 3,985.92 and 1,669.08 is: 2,507.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.20 : 3,985.92 = 1,669.08 : x
  2. Step 2: Convert to fraction form
    2,653.20/3,985.92 = 1,669.08/x
  3. Step 3: Cross multiply
    2,653.20x = 3,985.92 × 1,669.08
  4. Step 4: Simplify right side
    2,653.20x = 6,652,819.35
  5. Step 5: Solve for x
    x = 6,652,819.35/2,653.20
  6. Step 6: Final answer
    x = 2,507.47

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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.