Home / 1,165.14-1,747.98-395.64

Finding the Fourth Proportional to 1,165.14, 1,747.98 and 395.64

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Solution

The fourth proportional to 1,165.14, 1,747.98 and 395.64 is: 593.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.14 : 1,747.98 = 395.64 : x
  2. Step 2: Convert to fraction form
    1,165.14/1,747.98 = 395.64/x
  3. Step 3: Cross multiply
    1,165.14x = 1,747.98 × 395.64
  4. Step 4: Simplify right side
    1,165.14x = 691,570.81
  5. Step 5: Solve for x
    x = 691,570.81/1,165.14
  6. Step 6: Final answer
    x = 593.55

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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.