Home / 1,993.49-2,751.77-1,330.10

Finding the Fourth Proportional to 1,993.49, 2,751.77 and 1,330.10

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Solution

The fourth proportional to 1,993.49, 2,751.77 and 1,330.10 is: 1,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.49 : 2,751.77 = 1,330.10 : x
  2. Step 2: Convert to fraction form
    1,993.49/2,751.77 = 1,330.10/x
  3. Step 3: Cross multiply
    1,993.49x = 2,751.77 × 1,330.10
  4. Step 4: Simplify right side
    1,993.49x = 3,660,129.28
  5. Step 5: Solve for x
    x = 3,660,129.28/1,993.49
  6. Step 6: Final answer
    x = 1,836.04

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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.