Home / 1,732.29-2,389.80-1,172.57

Finding the Fourth Proportional to 1,732.29, 2,389.80 and 1,172.57

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Solution

The fourth proportional to 1,732.29, 2,389.80 and 1,172.57 is: 1,617.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.29 : 2,389.80 = 1,172.57 : x
  2. Step 2: Convert to fraction form
    1,732.29/2,389.80 = 1,172.57/x
  3. Step 3: Cross multiply
    1,732.29x = 2,389.80 × 1,172.57
  4. Step 4: Simplify right side
    1,732.29x = 2,802,195.84
  5. Step 5: Solve for x
    x = 2,802,195.84/1,732.29
  6. Step 6: Final answer
    x = 1,617.63

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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.