Home / 1,165.23-1,748.09-385.29

Finding the Fourth Proportional to 1,165.23, 1,748.09 and 385.29

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Solution

The fourth proportional to 1,165.23, 1,748.09 and 385.29 is: 578.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.23 : 1,748.09 = 385.29 : x
  2. Step 2: Convert to fraction form
    1,165.23/1,748.09 = 385.29/x
  3. Step 3: Cross multiply
    1,165.23x = 1,748.09 × 385.29
  4. Step 4: Simplify right side
    1,165.23x = 673,522.56
  5. Step 5: Solve for x
    x = 673,522.56/1,165.23
  6. Step 6: Final answer
    x = 578.02

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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.