Home / 1,725.89-2,381.64-939.92

Finding the Fourth Proportional to 1,725.89, 2,381.64 and 939.92

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Solution

The fourth proportional to 1,725.89, 2,381.64 and 939.92 is: 1,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.89 : 2,381.64 = 939.92 : x
  2. Step 2: Convert to fraction form
    1,725.89/2,381.64 = 939.92/x
  3. Step 3: Cross multiply
    1,725.89x = 2,381.64 × 939.92
  4. Step 4: Simplify right side
    1,725.89x = 2,238,539.16
  5. Step 5: Solve for x
    x = 2,238,539.16/1,725.89
  6. Step 6: Final answer
    x = 1,297.04

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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.