Home / 1,993.09-2,751.60-1,330.92

Finding the Fourth Proportional to 1,993.09, 2,751.60 and 1,330.92

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Solution

The fourth proportional to 1,993.09, 2,751.60 and 1,330.92 is: 1,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.09 : 2,751.60 = 1,330.92 : x
  2. Step 2: Convert to fraction form
    1,993.09/2,751.60 = 1,330.92/x
  3. Step 3: Cross multiply
    1,993.09x = 2,751.60 × 1,330.92
  4. Step 4: Simplify right side
    1,993.09x = 3,662,159.47
  5. Step 5: Solve for x
    x = 3,662,159.47/1,993.09
  6. Step 6: Final answer
    x = 1,837.43

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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.