Home / 1,549.26-2,136.33-1,392.51

Finding the Fourth Proportional to 1,549.26, 2,136.33 and 1,392.51

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Solution

The fourth proportional to 1,549.26, 2,136.33 and 1,392.51 is: 1,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.26 : 2,136.33 = 1,392.51 : x
  2. Step 2: Convert to fraction form
    1,549.26/2,136.33 = 1,392.51/x
  3. Step 3: Cross multiply
    1,549.26x = 2,136.33 × 1,392.51
  4. Step 4: Simplify right side
    1,549.26x = 2,974,860.89
  5. Step 5: Solve for x
    x = 2,974,860.89/1,549.26
  6. Step 6: Final answer
    x = 1,920.18

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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.