Home / 2,648.70-3,979.17-1,664.58

Finding the Fourth Proportional to 2,648.70, 3,979.17 and 1,664.58

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Solution

The fourth proportional to 2,648.70, 3,979.17 and 1,664.58 is: 2,500.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.70 : 3,979.17 = 1,664.58 : x
  2. Step 2: Convert to fraction form
    2,648.70/3,979.17 = 1,664.58/x
  3. Step 3: Cross multiply
    2,648.70x = 3,979.17 × 1,664.58
  4. Step 4: Simplify right side
    2,648.70x = 6,623,646.80
  5. Step 5: Solve for x
    x = 6,623,646.80/2,648.70
  6. Step 6: Final answer
    x = 2,500.72

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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.