Home / 2,135.97-2,949.01-1,664.35

Finding the Fourth Proportional to 2,135.97, 2,949.01 and 1,664.35

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Solution

The fourth proportional to 2,135.97, 2,949.01 and 1,664.35 is: 2,297.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.97 : 2,949.01 = 1,664.35 : x
  2. Step 2: Convert to fraction form
    2,135.97/2,949.01 = 1,664.35/x
  3. Step 3: Cross multiply
    2,135.97x = 2,949.01 × 1,664.35
  4. Step 4: Simplify right side
    2,135.97x = 4,908,173.26
  5. Step 5: Solve for x
    x = 4,908,173.26/2,135.97
  6. Step 6: Final answer
    x = 2,297.87

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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.