Home / 1,659.20-2,290.12-996.08

Finding the Fourth Proportional to 1,659.20, 2,290.12 and 996.08

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Solution

The fourth proportional to 1,659.20, 2,290.12 and 996.08 is: 1,374.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659.20 : 2,290.12 = 996.08 : x
  2. Step 2: Convert to fraction form
    1,659.20/2,290.12 = 996.08/x
  3. Step 3: Cross multiply
    1,659.20x = 2,290.12 × 996.08
  4. Step 4: Simplify right side
    1,659.20x = 2,281,142.73
  5. Step 5: Solve for x
    x = 2,281,142.73/1,659.20
  6. Step 6: Final answer
    x = 1,374.84

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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.