Home / 1,781.75-2,673.98-1,165.28

Finding the Fourth Proportional to 1,781.75, 2,673.98 and 1,165.28

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Solution

The fourth proportional to 1,781.75, 2,673.98 and 1,165.28 is: 1,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.75 : 2,673.98 = 1,165.28 : x
  2. Step 2: Convert to fraction form
    1,781.75/2,673.98 = 1,165.28/x
  3. Step 3: Cross multiply
    1,781.75x = 2,673.98 × 1,165.28
  4. Step 4: Simplify right side
    1,781.75x = 3,115,916.22
  5. Step 5: Solve for x
    x = 3,115,916.22/1,781.75
  6. Step 6: Final answer
    x = 1,748.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.