Home / 1,310.49-1,965.69-1,104.72

Finding the Fourth Proportional to 1,310.49, 1,965.69 and 1,104.72

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Solution

The fourth proportional to 1,310.49, 1,965.69 and 1,104.72 is: 1,657.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.49 : 1,965.69 = 1,104.72 : x
  2. Step 2: Convert to fraction form
    1,310.49/1,965.69 = 1,104.72/x
  3. Step 3: Cross multiply
    1,310.49x = 1,965.69 × 1,104.72
  4. Step 4: Simplify right side
    1,310.49x = 2,171,537.06
  5. Step 5: Solve for x
    x = 2,171,537.06/1,310.49
  6. Step 6: Final answer
    x = 1,657.04

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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.