Home / 5,170.82-7,755.58-1,660.55

Finding the Fourth Proportional to 5,170.82, 7,755.58 and 1,660.55

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Solution

The fourth proportional to 5,170.82, 7,755.58 and 1,660.55 is: 2,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.82 : 7,755.58 = 1,660.55 : x
  2. Step 2: Convert to fraction form
    5,170.82/7,755.58 = 1,660.55/x
  3. Step 3: Cross multiply
    5,170.82x = 7,755.58 × 1,660.55
  4. Step 4: Simplify right side
    5,170.82x = 12,878,528.37
  5. Step 5: Solve for x
    x = 12,878,528.37/5,170.82
  6. Step 6: Final answer
    x = 2,490.62

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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.