Home / 5,171.37-7,754.68-1,660.69

Finding the Fourth Proportional to 5,171.37, 7,754.68 and 1,660.69

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Solution

The fourth proportional to 5,171.37, 7,754.68 and 1,660.69 is: 2,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.37 : 7,754.68 = 1,660.69 : x
  2. Step 2: Convert to fraction form
    5,171.37/7,754.68 = 1,660.69/x
  3. Step 3: Cross multiply
    5,171.37x = 7,754.68 × 1,660.69
  4. Step 4: Simplify right side
    5,171.37x = 12,878,119.53
  5. Step 5: Solve for x
    x = 12,878,119.53/5,171.37
  6. Step 6: Final answer
    x = 2,490.27

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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.