Home / 2,185.40-3,277.16-798.28

Finding the Fourth Proportional to 2,185.40, 3,277.16 and 798.28

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Solution

The fourth proportional to 2,185.40, 3,277.16 and 798.28 is: 1,197.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.40 : 3,277.16 = 798.28 : x
  2. Step 2: Convert to fraction form
    2,185.40/3,277.16 = 798.28/x
  3. Step 3: Cross multiply
    2,185.40x = 3,277.16 × 798.28
  4. Step 4: Simplify right side
    2,185.40x = 2,616,091.28
  5. Step 5: Solve for x
    x = 2,616,091.28/2,185.40
  6. Step 6: Final answer
    x = 1,197.08

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1.5x scale

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.