Home / 1,725.26-2,381.13-979.06

Finding the Fourth Proportional to 1,725.26, 2,381.13 and 979.06

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Solution

The fourth proportional to 1,725.26, 2,381.13 and 979.06 is: 1,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.26 : 2,381.13 = 979.06 : x
  2. Step 2: Convert to fraction form
    1,725.26/2,381.13 = 979.06/x
  3. Step 3: Cross multiply
    1,725.26x = 2,381.13 × 979.06
  4. Step 4: Simplify right side
    1,725.26x = 2,331,269.14
  5. Step 5: Solve for x
    x = 2,331,269.14/1,725.26
  6. Step 6: Final answer
    x = 1,351.26

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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.