Home / 1,725.51-2,381.13-939.56

Finding the Fourth Proportional to 1,725.51, 2,381.13 and 939.56

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Solution

The fourth proportional to 1,725.51, 2,381.13 and 939.56 is: 1,296.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.51 : 2,381.13 = 939.56 : x
  2. Step 2: Convert to fraction form
    1,725.51/2,381.13 = 939.56/x
  3. Step 3: Cross multiply
    1,725.51x = 2,381.13 × 939.56
  4. Step 4: Simplify right side
    1,725.51x = 2,237,214.50
  5. Step 5: Solve for x
    x = 2,237,214.50/1,725.51
  6. Step 6: Final answer
    x = 1,296.55

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1.5x scale

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.