Home / 2,790.84-4,186.22-1,146.92

Finding the Fourth Proportional to 2,790.84, 4,186.22 and 1,146.92

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Solution

The fourth proportional to 2,790.84, 4,186.22 and 1,146.92 is: 1,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.84 : 4,186.22 = 1,146.92 : x
  2. Step 2: Convert to fraction form
    2,790.84/4,186.22 = 1,146.92/x
  3. Step 3: Cross multiply
    2,790.84x = 4,186.22 × 1,146.92
  4. Step 4: Simplify right side
    2,790.84x = 4,801,259.44
  5. Step 5: Solve for x
    x = 4,801,259.44/2,790.84
  6. Step 6: Final answer
    x = 1,720.36

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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.