Home / 2,276.92-3,415.45-890.20

Finding the Fourth Proportional to 2,276.92, 3,415.45 and 890.20

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Solution

The fourth proportional to 2,276.92, 3,415.45 and 890.20 is: 1,335.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.92 : 3,415.45 = 890.20 : x
  2. Step 2: Convert to fraction form
    2,276.92/3,415.45 = 890.20/x
  3. Step 3: Cross multiply
    2,276.92x = 3,415.45 × 890.20
  4. Step 4: Simplify right side
    2,276.92x = 3,040,433.59
  5. Step 5: Solve for x
    x = 3,040,433.59/2,276.92
  6. Step 6: Final answer
    x = 1,335.33

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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.