Home / 1,310.24-1,965.45-336.35

Finding the Fourth Proportional to 1,310.24, 1,965.45 and 336.35

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Solution

The fourth proportional to 1,310.24, 1,965.45 and 336.35 is: 504.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.24 : 1,965.45 = 336.35 : x
  2. Step 2: Convert to fraction form
    1,310.24/1,965.45 = 336.35/x
  3. Step 3: Cross multiply
    1,310.24x = 1,965.45 × 336.35
  4. Step 4: Simplify right side
    1,310.24x = 661,069.28
  5. Step 5: Solve for x
    x = 661,069.28/1,310.24
  6. Step 6: Final answer
    x = 504.54

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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.