Home / 2,091.36-2,884.50-1,305.12

Finding the Fourth Proportional to 2,091.36, 2,884.50 and 1,305.12

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Solution

The fourth proportional to 2,091.36, 2,884.50 and 1,305.12 is: 1,800.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.36 : 2,884.50 = 1,305.12 : x
  2. Step 2: Convert to fraction form
    2,091.36/2,884.50 = 1,305.12/x
  3. Step 3: Cross multiply
    2,091.36x = 2,884.50 × 1,305.12
  4. Step 4: Simplify right side
    2,091.36x = 3,764,618.64
  5. Step 5: Solve for x
    x = 3,764,618.64/2,091.36
  6. Step 6: Final answer
    x = 1,800.08

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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.