Home / 1,725.26-2,381.07-1,138.43

Finding the Fourth Proportional to 1,725.26, 2,381.07 and 1,138.43

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Solution

The fourth proportional to 1,725.26, 2,381.07 and 1,138.43 is: 1,571.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.26 : 2,381.07 = 1,138.43 : x
  2. Step 2: Convert to fraction form
    1,725.26/2,381.07 = 1,138.43/x
  3. Step 3: Cross multiply
    1,725.26x = 2,381.07 × 1,138.43
  4. Step 4: Simplify right side
    1,725.26x = 2,710,681.52
  5. Step 5: Solve for x
    x = 2,710,681.52/1,725.26
  6. Step 6: Final answer
    x = 1,571.17

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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.