Home / 1,960.80-2,706.12-1,175.04

Finding the Fourth Proportional to 1,960.80, 2,706.12 and 1,175.04

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Solution

The fourth proportional to 1,960.80, 2,706.12 and 1,175.04 is: 1,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.80 : 2,706.12 = 1,175.04 : x
  2. Step 2: Convert to fraction form
    1,960.80/2,706.12 = 1,175.04/x
  3. Step 3: Cross multiply
    1,960.80x = 2,706.12 × 1,175.04
  4. Step 4: Simplify right side
    1,960.80x = 3,179,799.24
  5. Step 5: Solve for x
    x = 3,179,799.24/1,960.80
  6. Step 6: Final answer
    x = 1,621.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.