Home / 1,725.42-2,381.06-939.46

Finding the Fourth Proportional to 1,725.42, 2,381.06 and 939.46

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Solution

The fourth proportional to 1,725.42, 2,381.06 and 939.46 is: 1,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.42 : 2,381.06 = 939.46 : x
  2. Step 2: Convert to fraction form
    1,725.42/2,381.06 = 939.46/x
  3. Step 3: Cross multiply
    1,725.42x = 2,381.06 × 939.46
  4. Step 4: Simplify right side
    1,725.42x = 2,236,910.63
  5. Step 5: Solve for x
    x = 2,236,910.63/1,725.42
  6. Step 6: Final answer
    x = 1,296.44

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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.