Home / 5,171.19-7,754.39-1,660.55

Finding the Fourth Proportional to 5,171.19, 7,754.39 and 1,660.55

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Solution

The fourth proportional to 5,171.19, 7,754.39 and 1,660.55 is: 2,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.19 : 7,754.39 = 1,660.55 : x
  2. Step 2: Convert to fraction form
    5,171.19/7,754.39 = 1,660.55/x
  3. Step 3: Cross multiply
    5,171.19x = 7,754.39 × 1,660.55
  4. Step 4: Simplify right side
    5,171.19x = 12,876,505.24
  5. Step 5: Solve for x
    x = 12,876,505.24/5,171.19
  6. Step 6: Final answer
    x = 2,490.05

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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.